‘ ,
sige
THE
EDINBURGH NEW
- PHILOSOPHICAL JOURNAL.
THE
EDINBURGH NEW
PHILOSOPHICAL JOURNAL,
EXHIBITING A VIEW OF THE
PROGRESSIVE DISCOVERIES AND IMPROVEMENTS
IN THE
CONDUCTED BY
>
ROBERT JAMESON,
REGIUS PROFESSOR OF NATURAL HISTORY, LECTURER ON MINERALOGY, AND KEEPER OF
THE MUSEUM IN THE UNIVERSITY OF EDINBURGH ;
Fellow of the Royal Societies of London and Edinburgh ; Honorary Member of the Royal Irish Academy ; of the
Royal Society of Sciences of Denmark ; of the Royal Academy of Sciences of Berlin ; of the Royal Academy of
Naples ; of the Geological Society of France; Honorary Member of the Asiatic Society of Calcutta ; Fellow of
the Royal Linnean, and of the Geological Societies of London ; of the Royal Geological Society of Cornwall, and
of the Cambridge Philosophical Society ; of the Antiquarian, Wernerian Natural History, Royal Medical, Royal
Physieal, and Horticultural Societies of Edinburgh ; of the Highland and Agricultural Society of Scotland ; of
the Antiquarian and Literary Society of Perth; of the Statistical Society of Glasgow ; of the Royal Dublin
Society ; of the York, Bristol, Cambrian, Whitby, Northern, and Cork Institutions ; of the Natural History So-
“ eiety of Northumberland, Durham, and Newcastle ; of the Imperial Pharmaceutical Society of Petersburgh ; of
the Natural History Society of Wetterau ; of the Mineralogical Society of Jena ; of the Royal Mineralogical So-
ciety of Dresden ; of the Natural History Society of Paris ; of the Philomathic Society of Paris ; of the Natural
History Society of Calvados ; of the Senkenberg Society of Natural History ; of the Society of Natural Sciences
and Medicine of Heidelberg ; Honorary Member of the Literary and Philosophical Society of New York ; of
the New York Historical Society ; of the American Antiquarian Society ; of the Academy of Natural Sciences of
Philadelphia ; of the Lyceum of Natural History of New York ; of the Natural History Society of Montreal ; of
the Franklin Institute of the State of Pennsylvania for the Promotion of the Mechanical Arts ; of the Geologicai
Society of Pennsylvania ; of the Boston Society of Natural History of the United States ; of the South African
Institution of the Cape of Good Hope ; Honorary Member of the Statistical Society of France ; Member of the
Entomological Society of Stettin, &c. &c. &e.
APRIL 1848 .... OCTOBER 1848.
VOL. XLV.
ZO BE CONTINUED QUARTERLY.
EDINBURGH :
ADAM & CHARLES BLACK, EDINBURGH:
LONGMAN, BROWN, GREEN & LONGMANS, LONDON.
1848.
EDINBURGH:
PRINTED BY NEITL AND COMPANY, OLD FISHUMARKET,
CONTENTS.
PAGE
Art. I, Biography of M. D’Aubuisson de Voisins, Engineer-
in-Chief and Director of Mines. By M. Dre
Boucuerorn, Mining Engineer, . : : 1
IJ. Some additional Observations on the Urinary Excre-
ment of Insects. : By Joun Davy, M.D., F.RB.S.,
Lond. & Ed., Enspector-General of Army Hospi-
tals. Communicated by the Author, : 17
III. On the Erratic Basin of the Rhine. By M. A. Guyor,
Communicated by the Author, 7 - ~~ 320
IV. On the Depth and Saltness of the Ocean, 4 x 27
V. Notice of Carbonate of Copper and Zinc from Mat-
lock. By Professor A. Connety. Communi-
cated by the Author, . : : : ke
VI. On the Comparative Value of different Kinds of Coal
for the purpose of Illumination ; and on Methods
not hitherto practised for ascertaining the Value
of the Gases they afford. By Anprew Fyre,
M.D., F.R.S.E., F.R.S.S.A., Professor of Che-
mistry, King’s College University, Aberdeen, &c.
Communicated by the Royal Scottish Society of
Arts, : ‘ : ‘ : : eee
1. Quality of the Gases, : : : 5 37
2. Value of Coals for the purpose of [lumination, 42
3. Expense for Light by Different Gases, ‘ : 44.
Consumpt of Gases under different Pressures, : 48
il CONTENTS.
PAGE
VII. On the Parallel Roads of Lochaber. By James
Tuomson, Jun., M.A., Glasgow College. Com-
municated by the Author, . : : ieee
VIII. On Carbonic Acid as a solvent in the process of Vege-
tation. By Joun Davy, M.D., F.R.S., Lond. &
Ed., Inspector-General of Army Hospitals. Com-
municated by the Author, . ; : re OL
IX. Geological Researches in the Neighbourhood of Cha-
mounix, in Savoy. By AtpHonso Favre, Pro-
fessor of Geology to the Academy of Geneva.
(With a Plate.) Communicated by the Author, 69
X. A Brief Description of some Sepulchral Pits, of Indian
origin, lately discovered near Penetanqueshene.
By Epwarp W. Bawrrzz, M.D., Staff Assistant-
Surgeon. Communicated by Sir James Mac-
cericor, Bart., F.R.S., &c., Director-General of
the Army Medical Department. (With a Plate), 86
XI. General View of the mode of Formation of Iceland, 102
XII. 1. On the Cause of the recent Oscillation of the
Waters in the Lake Ontario. 2. An account of
the extraordinary Agitation of the Sea in Corn-
wall and Devon, on Sunday the 23d May 1847.
3. An Account of four Whirlwinds which passed
throught St Just, on the 12th of December 1846.
4, On the rapid Diminution of the Sand-banks in
Mount’s Bay. By Ricuarp Epmonps, Jun., Esq., 107
1. On the Causes of the recent Oscillation of the
Waters in Lake Ontario, 3 : ; 107
2. An Account of the extraordinary Agitation of the
Sea in Cornwall and Devon, on Sunday the 23d
of May 1847, = f : z 2 109
3. Au Account of Four Whirlwinds which passed
through St Just on the 12th of December 1846, 111
4. On the rapid Diminution of the Sand-banks in-
Mount’s Bay, : ‘ . R : if 3
a
XIII.
XIV.
mY
VG.
mV ES:
XVIII.
XIX.
CONTENTS.
On the Internal Pressure to which Rock Masses may
be subjected, and its possible influence in the Pro-
duction of the Laminated Structure. By W. Hop-
xins, M.A., F.R.S.,
The Volcanoes of Central France not in a State of
Activity in the Age of Julius Cesar,
Notes of a Botanical Excursion, with Pupils, to the
Mountains of Braemar, Glenisla, and Clova, and
to Benlawers, in August 1847. By J. H. Bat-
Four, M.D., Professor of Botany in the University
of Edinburgh, Communicated by the Author,
On the Glaciers and Climate of Iceland. By W. Sar-
TORIUS VON WALTERSHAUSEN,
Description of a Portable Cofferdam, adapted specially
for the use of Harbour and other Marine Works
in exposed situations. By THomas STEVENSON,
F.R.S.E., F.R.S.S.A., Civil Engineer, Edinburgh.
(With a Plate.) Communicated by the Royal
Scottish Society of Arts,
Of the Source of Motions upon the Earth, and of the
means by which they are sustained. By Rosert
E. Brown, M.D., Edinburgh. Communicated by
the Author, :
Account of the Proceedings of the Geological Society
of France for 1847. By Sir Henry pE La BECHE,
President of the Geological Society of London,
XX. On the Decomposition and partial Solution of Mine-
rals, Rocks, &c., by Pure Water, and Water
charged with Carbonic Acid. By Professor W. B.
Rocers, and Professor R, E. Rocers, of the Uni-
versity of Virginia,
XXI. Proceedings of the Royal Society of Edinburgh,
XXII. Wernerian Natural History Society,
ii
PAGE
115
110
122
129
140
146
155
163
169
174
CONTENTS.
PAGE
XXIII. Screntiric IntELLIGENCE :——
GEOLOGY AND MINERALOGY.
1. On the Question in Natural History, Have Genera,
like Species, Centres of Distribution? 2. Quater-
nary or Diluvian Formation. 3. Temperature of the
Sea at Spitzbergen. 4. Analogy between the Fossil
Flora of the European Miocene and the living Flora
of America. 5, Burra-Burra Copper Mines in New
Holland. 6. On an Amorphous Boracite. 7. On
the Fossil Vegetation of Anthracite Coal, 8. Arti-
ficial Colours in Agate. 9, The Coal of the Kangra
Valley. 10. On the Silification of Plants and Ani-
mals. 11. Reptilian Remains in the Coal Forma-
tion. 12. On the Structure and Teratology of Crys-
tallised Bodies. 13. M. Ebelmen on Artificial Hya-
lite and Hydrophane. 14. Geology of the Coasts of
Australia. 15. Present and former extent of the
Island of Heligoland. 16. On the Transporting
power of Currents. 17. On the Occurrence of Ores
of Mercury in the Coal Formation of Saarbriick,
175-189
BOTANY.
18. On the Plant which furnished the precious wood called
Ebony, and on the country from which the Hebrews
exported it. 19. Preservation of the Forests in the
N.-W. P. of India. 20. The Tea Plantations in the
N.-W. Provinces of India, and the Culture of Ame-
rican Cotton in India, . : r : 190-194
ZOOLOGY.
21, Equus Hemionus. 22. Notice of Dr Martin Barry’s
Physiological Discoveries. 23. On the Fossil Bones
of the Ancient Birds of New Zealand. 24. On the
Geographical Distribution of Animal Species,
194-197
MISCELLANEOUS.
25. and 26, Projected Physico-Geographical Survey of
Kumaon and Gurhwal. 27. Adulteration in Medi-
cines, . ; 2 : : : ; 197-199
XXIV. New Publications received, : : 5 » 8
XXV. List of Patents granted for Scotland from 3d April to
22d June 1848, 3 : : 4 . 202
CONTENTS.
PAGE
Art. I. Biography of M. D’Aubuisson de Voisins, Engineer-
in-Chief and Director of Mines. By M. Ds
Bovucueporn, Mining Engineer. (Continued from
p- 16), , ; ; ; ‘ : . 205
II. On the Sources of the Nile in the Mountains of the
Moon. By Cuarzes T. Bere, Ph. D., F.S.A.,
&c. (With a Plate.) Communicated by the
Author, ‘ - ; ; 2 é -, 221
III. Researches into the Effects of certain Physical and
Chemical Agents on the Nervous System. By
MarsHatt Hatz, M.D., F.R.S., Foreign Asso-
ciate of the Royal Academy of Medicine of Paris,
&e., &c, (With a Plate.) Communicated by the
Author.
Section I. On-the Electrogenic Condition of Muscular
Nerves :—
1. Introductory Observations, . : - . 2952
2. Precautions—Hffects of Dryness—of External Mois-
ture—of Extent of Contact, : : -) 2068
3. The Electrogenic Condition of the Nerves; and its
Discharge, . : \ 5 : - 258
4. Some Collateral Experiments, , - - 265
ii CONTENTS.
IV. On the Comparative Value of different Kinds of Coal
for the purpose of Illumination ; and on Methods
not hitherto practised for ascertaining the Value
of the Gases they afford. By Anprew Fyre,
M.D., F.R.S.E., F.R.S.8.A., Professor of Che-
mistry, King’s College University, Aberdeen, &c.
Communicated by the Royal Scottish Society of
Arts. (Continued from p. 49),
V. On the Glaciers and Climate of Iceland. By W. Sar-
TORIUS VON WALTERSHAUSEN. (Continued from
p- 140),
VI. Of the Source of Motions upon the Earth, and of the
means by which they are sustained. By Roperr
E. Brown, M.D., Edinburgh. Communicated by
the Author. (Continued from p. 155), .
VII. Account of the Proceedings of the Geological Society
of France and Ireland for 1847. By Sir Henry
DE LA Brcue, President of the Geological Society
of London. (Continued from p. 163), .
VIII. On the Metalliferous Deposits of the Malay Peninsula,
IX. Anniversary Address, for 1848, to the Ethnological
Society of London, on the recent Progress of
Ethnology. By the President, James Cow zs
Pricuarp, M.D., F.R.S., Member of the Insti-
tute of France, &c. Communicated by the Society,
X. On the Continuity of Metalliferous Repositories in
Depth. By M. Ameper Burar,
XI. On the Vegetation of the Carboniferous Period, as
compared with that of the present day. By Dr
PAGE
267
281
302
336
346
XIII.
XIV.
XV.
XVI.
XVII.
CONTENTS. iil
PAGE
Hooker, Botanist to the Geological Survey of the
United Kingdom, , ; : : . 93862
. On the Coal Formation recently found in the Marem-
ma of Tuscany. (Extracted from a Notice of M.
Pitxa, Professor in the University of Pisa.) By
M. L. Frapotn, ; ; ) s . 3869
Synopsis of Meteorological Observations made at White-
haven, Cumberland, in the year 1847. By Joun
FietcHer Minier, Esq., , : . 374
On the Asteriadz found Fossil in British Strata. By
Epwarp Forszs, Esq., F.R.S., Professor of Bo-
tany in King’s College, London, Palzontologist
to the Geological Survey of the United Kingdom, 379
Miscellaneous Observations on the Centipede (Scolo-
pendra morsitans), and on the large Land Snail
of the West Indies (Helix oblonga). By Joun
Davy, M.D., F.R.S. London and Edinburgh ;
Inspector-General of Army Hospitals. Communi-
cated by the Author, . ; ; e . 383
Oxydation of the Diamond in the Liquid Way. By
Professor R. E. Rogers and Professor W. B.
Rogers, University of Virginia, . : . 388
List of Prizes by the Royal Scottish Society of Arts,
for Session 1848-49, . : ; , . 389
. SCIENTIFIC INTELLIGENCE :——
METEOROLOGY AND HYDROLOGY.
1. Researches on the Constitution of the Atmosphere.
2. An Account of some Observations made on the
Depth of Rain which falls in the same localities at
iv CONTENTS.
PAGE
different altitudes in the Hilly Districts of Lanca-
“ve shire, Cheshire, and Derbyshire. 3. Inundation of
the Indus, 4.D. 1842, 4. Flood of the Macquarie,
392-393
GEOLOGY.
5. The Glacial Theory not abandoned by its author,
Professor Agassiz. 6. Level of the Caspian and
Dead Seas. 7. Common Salt. 8. Talus Slopes.
9. On the remains of Marine Shells of Existing
Species found interspersed in deep portions of the
Hills of Drift and Boulders in the Heights of Brook-
lyn, on Long Island, near New York, - 396-398
ZOOLOGY.
10. The Number of Vertebrate, Molluscous, Articulated,
and Radiated Animals. 11. On Changes in the
Fauna of Sweden. 12. On the Sounds emitted by
Molluses. 13, On the Boring of the Molluses into
Rocks, and on the removal of portions of their Shells,
399-404
XIX. Mr Tuomson’s Letter on Parallel Roads of Lochaber, 404
XX. List of Patents granted for Scotland from 22d June ©
to 22d September 1848, . : ; .» 405
INDEX, : 3
THE
EDINBURGH NEW
PHILOSOPHICAL JOURNAL.
Biography of M. D’ Aubuisson de Voisins, Engineer-in-Chief
and Director of Mines. By M. Du Boucnnrorn, Mining
Engineer.
Iv is already upwards of five years since the Corps des
Mines lost, in M. D’Aubuisson, one of the engineers who
have done it most honour by their works, and whose life has
been most constantly and laboriously employed in useful
undertakings. The long scientific career which then termi-
nated, dates from the beginning of the century, and never
for a moment did his activity, always directed to works of
positive utility, suffer any interruption. The Corps des Mines,
in which he left so many old friends and a still greater num-
ber of admirers, and which regarded his name as one of
those most worthy of being preserved, could not fail to devote
a page of their Annals to his memory. This mournful but
honourable duty has been reserved for us, who had the sorrow
to close his eyes ; and, notwithstanding the grief which must
attend it, it would be a kind of consolation for our own indi-
vidual loss, if we were not apprehensive of our insufliciency
for the task. It would have belonged more appropriately to
other engineers of longer standing than ourselves in the pro-
fession, and who had been acquainted with M. D’Aubuisson
for a longer period, to appreciate the works he has bequeathed
‘to us, and the services he has rendered to science and the
body with which he was connected. We shall attempt to do
this notwithstanding, encouraged by the reflection, that none
can speak of him under the influence of a truer attachment,
and with a more sincere respect for his memory.
The whole of M. D’Aubuisson’s life does not equally claim
VOL, XLV. NO. LXXXIX,—JULY 1848. A
2 Memoir of M. D’ Aubuisson de Voisins.
our notice, although science occupied the principal part of it.
He was an officer of artillery previously to the Revolution of
1791, and at that time his career was interrupted ; after
numerous vicissitudes, it was not till the age of 38 that he
again obtained a settled occupation by joining, under circum-
stanees which formed an exception to the existing practice,
the department of mining engineers, where he has since occu-
pied so honourable a place, during almost an equal length of
time. We must be brief, however, on the early portion of
M. D’ Aubuisson’s life, as science did not then occupy the prin-
cipal part of it. In a biography of a less special nature, and
less rich in other respects, this no doubt would be a blank
to be regretted: a man of merit ought to be viewed in every
aspect, and this, perhaps, in the present instance, would have
been particularly desirable; for M. D’Aubuisson was not
only a distinguished savant, but also a man of heart and
spirit, possessed of a generous and elevated mind, and the
stormy seasons in which he spent his youth must have brought
these qualities into prominent exercise. We shall not hesi-
tate to sketch a few traits, without forgetting at the same
time that this simple notice must be principally devoted to
the scientific life of M. D’Aubuisson,—that it is chiefly to
the memory of the engineer and man of science that we are
called upon to pay a tribute.
JEAN-FRANCOIS D’AUBUISSON DE VOISINS, Engineer-in-
Chief and Director to the Corps Royal des Mines, Officer of
the Legion of Honour, Chevalier of St Louis, corresponding
member of the Institute of France, and perpetual Secretary
to the Academy of Sciences of Toulouse, was born in that
town on the 16th of April 1769.* He entered upon his
earliest studies at Soréze, a school renowned in the south,
where education, although conducted by priests and monks,
was established on a broad basis, and directed particularly
to the exact sciences, and such as are preparatory for the
military art. On leaving his first studies, at the age of 18,
* The year 1769, famous for the birth of Napoleon, is remarkable in the
history of geology ; MM. Cuvier, Humboldt, De Buch, Alex. Brongniart, belong
to it, as well as M. D’Aubuisson.
Memoir of M. D’ Aubuisson de V oisins. 3
M. D’Aubuisson at first turned his views to the study of
public law. He was destined for diplomacy, a department
in which the relations of his family would have aided his
progress, had not death suddenly carried off the ambassador
on whom he chiefly depended for support. Undoubtedly, the
aptitude of his mind, if that be sufficient, might have ensured
him success in this sphere ; the correctness of his views, the
justness and elevated tone of his ideas, would certainly have
made him equal to the highest interests ; but we may, never-
theless, here congratulate ourselves that his life was reserved
for the sciences; it might have been more brilliant, it could
scarcely have been more useful.
Having returned to his family, M. D’ Aubuisson turned his
attention more particularly to the exact sciences, in the wish
to become an accomplished soldier ; he was admitted in 1789
as a candidate in the Royal Corps of Artillery. Soon after
that, the violent tempest of the French Revolution broke
forth: the emigration of a great number of our nobility,
either voluntarily or by force, took place ; and this unfortu-
nate consequence of our civil commotions removed M. D’Au-
buisson also from his native land, and enrolled him among
the small army of officers assembled under the orders of the
Prince de Condé. He was still very young, and it forms no
part of our plan to discuss, or even to indicate, the part which
he may have taken in the transactions of this important era :
that it is the province of History alone to appreciate, when,
after subduing, by the influence of time, the passions and re-
collections which are still too vivid, it shall assign to each
the proportion which rightly belonged to him, arising from
his education, social tendencies, and political religion, What
we may at least affirm is this, that M. D’Aubuisson’s moving
principle, at this period of his life, which had so decisive an
influence on his future prospects, was a virtue which is
always noble, in whatsoever circumstances it may be exer-
cised; that is, enthusiasm. We may here only further re-
mark, that this exile of emigration proved, so to speak,
M. D’Aubuisson’s scientific cradle ; it was here that he formed
the first taste for, and made the earliest. applications of, the
studies which afterwards formed the occupation of his whole
4 Memoir of M. D’ Aubuisson de V oisins.
life, and which have made him become one of the most dis-
tinguished members of the Corps des Mines, and one of the
savants who have contributed most to spread the taste and
principles of geology in France, as well as the enlightened
study of the laws and applications of hydraulics.
A few years after M. D’Aubuisson had left France, the
progress of events, and the disbanding of the army to which
he belonged, left him in a foreign land free from political
engagements, but insulated, without support, and almost
destitute of resources. Poor as then were his other com-
panions in exile, he had to think of some means of providing
for his subsistence, by turning to account the advantages of
an excellent education. But it was not endugh for a mind
like that of M. D’ Aubuisson’s to employ its faculties to secure
the well-being of the moment; he must exert them to the
further benefit of his own understanding, and the promotion
of his own knowledge. Being above all things a man of
sense and judgment, he felt it necessary to go along with
the times, and work for a future object, however uncertain
that future might be to him. He could not forget that France
was the country of his birth; neither could he believe that
his return to it was for ever precluded. His principal object,
therefore, was to obtain in Germany what should be fitted
for that country ; to enrich himself with the most valuable
knowledge to be found there, that he might afterwards carry
it as a tribute to his native land.
Germany, the country of mines, is one of the cradles of
mineralogy, and of all the sciences which relate to the know-
ledge and investigation of the earth’s surface. The study of
mineralogy and geology had already attained some eminence
in France, for our own country had produced Romé de Lisle,
Buffon, Saussure, Haiiy, Vauquelin, and Dolomieu. But it
flourished in Germany at this time with a peculiar lustre, for
Werner taught at Freiberg.
Attracted by the fame of this celebrated master, it was to
Freiberg that D’Aubuisson repaired: in that classic town he
took up his abode for many laborious years (from 1797 to
1802), at times changing his studies, sometimes hearing, at
other times giving, lectures; traversing Saxony, studying
Memoir of M. D Aubuisson de Voisins. 5
its geological structure, the works of its mines, its machines,
its metallurgic workshops, all with that eye of practical accu-
racy which he exhibited then, and which appeared in all his
succeeding works. Werner, that eminent genius, and en-
thusiastic master of a science which he had in part created,
and who has shone, perhaps, as much by the renown of his
school and disciples as by his own merits,—Werner could
not fail to appreciate the high qualities of mind possessed by
D’Aubuisson. He had welcomed him at first with German
kindness—with that kindness which was peculiar to himself;
when he knew him better he honoured him with his particu-
lar friendship, to which M. D’Aubuisson responded with the
zeal of an ardent proselyte, and an attachment the recollec-
tion and influence of which was never effaced from his heart.
It was, in fact, M. D’Aubuisson who translated Werner’s
principal work, the Theory of Veins, into French, and who
was one of the first to make the fundamental ideas of this
great mineralogist known amongst us.* In his small work
on the Basalts of Saxony, and in the introduction to his
Treatise in Geognosy, published long after, he has devoted
some beautiful and noble pages to his memory.
From the period of his abode at Freiberg, M. D’ Aubuisson
took rank among men of science, and among the distinguished
writers on the art of mining and geology. Every year was
marked by some important publication ; we shall first men-
tion those which appeared in Germany. In 1800 and 1801
he sent from Freiberg to the Journal des Mines three length-
ened memoirs on the preparation of the minerals of Saxony,
a subject altogether practical, but new in France, and which
he had studied on the spot with extreme precision. These
memoirs had been preceded by two others of a more elevated
character, devoted at least to subjects of a more general
_ kind, the one on the jurisprudence of the mines of Germany,
the other on the administration of the mines of Saxony, and
their economical produce ; a dissertation full of interest, par-
ticularly at this time, when the need was felt of remodelling
* An excellent translation of Werner on Veins was published by Dr Ander-
son of Leith, one of the original members of the Wernerian Society,
6 Memoir of M. D’ Aubuisson de V oisins.
and improving the legislation relating to the mines in France.
M. D’Aubuisson had given, and always afterwards continued
to give, particular attention to these legislative considera-
tions. Accordingly, the administration of mines did not fail
to profit by his knowledge in many circumstances, and par-
ticularly in the preparation of the great law on mines in
1810. In these early memoirs of which we now speak, he
advocated strongly the adoption of certain principles which
have since acquired the force of law in France, for example,
that of a complete separation between the proprietorship of
the mines and that of the surface of the ground.
From 1801 to 1802 M. D’Aubuisson was occupied with a
work of a more permanent character, which he published in
three volumes, on the Mines of Freiberg.* This was a work
containing much more than its modest title promised ; for this
monograph of the Mines of Saxony is conceived according to
so extensive a plan, that it seems rather a general treatise on
the Art of Mining than a particular description. The author,
in reality, passes in successive review the working of mines
among the ancients, the classification and general disposition
of metalliferous masses according to Werner’s views, on which
little had then been written; then all the technical generalities
respecting the working of metalliferous mines, comprehending
the methods of carriage and ventilation, sinking of shafts,
wood-work and masonry, hydraulic moving powers, the pre-
paration of minerals ; next the topography, history, and sta-
tistics of the mines of Freiberg taken collectively, the distri-
bution of all their moving water, their administration ; and,
lastly, a particular description of each of them. This publi-
cation contained the germ of all the researches, whether
mineralogical or hydraulic, which have been rendered so in-
teresting to science by the works of the latter half of his life.
He gives an account, in this work, of a numerous series of
experiments made by him in the bottom of the mines of
Freiberg, on the important question, which was still unsettled,
of subterranean temperature. He was, in fact, along with
M. Cordier, now General Inspector of Mines, one of the first
* Des Mines de Freiberg en Saxe et de leur exploitation. Leipsick, 1802.
ae
Memoir of M. D’ Aubuisson de Voisins. 7
men of science, after Saussure, who occupied themselves with
these interesting experiments, and who have established, by
positive figures, the great fact, up to that time doubtful, that
the temperature increases with the depth. It ought to be
mentioned, at the same time, that M. D’ Aubuisson, carried
away by the doctrine of Werner, did not then admit the in-
ternal heat of the globe, as may be seen in a memoir on the
temperature of the earth, inserted in the 62d volume of the
Journal de Physique (April 1806.)
About the same period (1802) appeared the French trans-
lation of Werner’s Theory of Veins.
All the earliest of M. D’Aubuisson’s writings, all that he
composed during his residence in Germany, are therefore
specially devoted to the study of mines; properly so called,
and the mode of working them. Placed near the greatest
centre of metalliferous mines, he became enthusiastic at the
sight of these places, and engaged in the laborious investiga-
tion of the work of the miners. This rude and technical
labour was perhaps, in other respects, an effort which he im-
posed upon his mind to alleviate the sorrows of a long exile ;
and it was not till his return to France that his mind was
sufficiently at ease to engage in publications of a more gene-
ral and less practical description. This return to his native
country, so desirable and so long desired, at last took place,
after ten years’ attempts, upon the general recall of the
emigrés.
But in reference to this subject, and in the interval of time
of which we have spoken, we must place an incident in the
life of M. D’Aubuisson, which we cannot permit ourselves to
pass over in silence, notwithstanding the reserve we have
prescribed for ourselves in regard to all that concerns his
private life only. This trait at once indicates the warmth of
his heart and the energy that were conspicuous in his cha-
racter. From the bosom of Germany, where he was passing
his exile, his eyes continued incessantly turned to France, to
his native town, to his family ; the desire of seeing them again
became so strong, that one day he could no longer resist it,
and he set out. The law of death against emigrés was then
enforced in all its rigour ; but he had decided that he should
8 Memoir of M. D’ Aubuisson de Vovsins.
again see his relatives, that he should again place his foot
upon his native ground, should it be only for a few days ; and,
animated by this pious idea, he undertook this long pilgrimage,
from which, according to all appearance, he would never re-
turn. He arrived at Paris, and had the boldness to assist,
under a German name, at a scientific meeting, where he was
recognised as French, and escaped the consequences of this
imprudent act only by a kind of miracle. He then traversed
all France, partly on foot, visited Toulouse, finally embraced
his father and his family, then with a contented heart re-
gained the frontier, and again found consolation for his exile
in his studies at Freiberg.
Similar traits, no doubt, were not rare at that time, when
French courage shewed itself under so many different forms ;
but whatever be the measure we are inclined to assign to it,
it is certain that in its motive and execution, it could only
belong to a strong mind and an excellent heart.
Having at length returned definitively to France, in con-
sequence of the consular amnesty, we find M. D’Aubuisson
engaged in geological publications of a freer spirit, and taking
an active share in the great debate of the period, that between
the Neptunians and Vulcanists. M. D’Aubuisson’s banner
could not be doubtful ; it was that of Werner. It was seen,
however, that he was animated by a truly philosophical spirit,
and did not blindly follow the guidance of a settled system,
but that he sought for and recognised the truth, even when
it cost him the public avowal of an error.
When traversing Saxony as an observer, he thought that
he perceived, in the position and nature of the basalts of that
country, facts calculated to extend the principles of the Frei-
berg school, to which he had devoted all the ardour of his
first convictions. He made this the subject of an interesting
memoir, written with elegance, in which the observations
were brought forward and discussed with remarkable care
and method, and which produced much effect on the Institute,
to which it was readin the beginning of 1803. The Nep-
tunians, I believe, then formed the majority in the Institute.*
* Dr P. Neill, universally known as a learned and sagacious naturalist, pub-
lished a translation of D’Aubuisson’s celebrated work on the Basalts of Saxony,
Memoir of M. D’ Aubuisson de Voisins. 9
This, in effect, was throwing a glove on the arena; M.
D’Aubuisson thought that he could prove that the basaltic
masses, which crown some of the summits of the Erzgebirge,*
were nothing else than fragments of a grand continuous layer,
the modern deposit of waters, which had covered all the
country ; a conclusion which he seemed to consider as uni-
versal in regard to this kind of rock. Such also was Werner’s
general opinion with respect to basalts ; and the idea, however
paradoxical it may appear to us now, had then the support of
other authorities not less high in science; thus, the work in
question may be said to be only a development of this phrase
of Dolomieu, ‘‘ The basalts of Saxony (black prismatic traps)
may be produced in the humid way.” M. D’Aubuisson had
taken this as the epigraph of his memoir, and a touch-
ing allusion, made in the course of it, to the loss then so
recent and unfortunate, of the illustrious French geologist,
contributed to shed an interest over his work, and tended to
secure for the author the good-will of the Institute. Of this
an honourable proof was soon given him. He confessed in
his memoirs that he had hitherto enjoyed no opportunity of
observing any volcano, either in a state of activity or extinct.
The Academy gave him a commission to visit those of Au-
vergne and Vivarais, in order that he might obtain the ele-
ments of a discussion opposite to the former; and he was
charged to make a detailed communication on the subject on
his return.
M. D’Aubuisson worthily fulfilled this mission, for he ful-
filled it as a true friend of truth, affording a rare instance of
the rejection of the conviction he had entertained, and which
had procured for him so many adherents. As soon as he
arrived in Auvergne, he observed the obvious passage of the
Scoriaceous lavas into basalt, which are to be found there
at every step. He could no longer doubt his error as to the
supposed Neptunian origin of the Saxony basalts, and, frankly
with many important annotations and additions. Dr Neill, like Dr Anderson
already mentioned, is one of the original members of the Wernerian Society.
* The small chain which separates Saxony from Bohemia, and whose name
signifies metalliferous mountains. M. De Bonnard made us acquainted with
their geological constitution, in 1816, in his important memoir, Yssai @eognos-
tique sur Erzgebirge.
10 Memoir of M. D' Aubuisson de Voisins.
abandoning it, he made a refutation, in a report presented to
the Institute in 1804, of his own opinions. ‘* And we wit-
nessed (to borrow the expression of an individual of much
intelligence, who has devoted some pages to the memory of
M. D’Aubuisson, his relation); we witnessed a philosopher,
truly worthy of the name, employing all the resources of his
mind to demonstrate that he had been mistaken.”* It was
an interesting incident. He told me that some academicians
never forgave him.
I cannot here refrain from paying a just tribute to Werner,
and the principles of his school. Beyond the views he enter-
tained, so beautiful and fruitful in results, respecting the suc-
cession of formations, and metallic veins, Werner professed
certain systematic ideas now generally abandoned, and which
will probably never again be revived in science ; but Werner
had seen at least that the body of doctrines called Geognosy,
that is to say, knowledge of the earth, has its principle in
observation ; he had, therefore, taught his pupils to observe
and listen to the language of facts ; he had given them a taste
for facts. In a word, he formed great observers ; and it is in
this respect particularly that he has deserved so well of
science and of posterity ; for, according to this method, error
can only last for a time, and truth, sooner or later, is brought
to light. By this method, every thing resulting from the
exertions of honest minds contributes to the study of nature ;
since neither the resistance they encounter to-day, nor the
changes which the general progress of ideas will induce to-
morrow, have the power of discouraging them. The inevitable
errors which may still accompany this labour of the mind,
founded on observation, can only be ephemeral in their effects ;
what is true remains, and will form a point of departure
for others, sometimes more highly gifted, but not on that ac-
count alone more deserving.
In consideration of his remarkable works, M. D’ Aubuisson
at last obtained a situation at Paris, a small recompense for
his merits, but which at least permitted him to devote him-
self more freely to the cultivation of the sciences in which
* Hloge pronounced to the Academy des jeux floraux, by M. Le Vicomte de
Panat.
Memoir of M. D’ Aubuisson de Voisins. li
he was so skilled: he was nominated, in the beginning of
1803, coadjutor to the Conservator of the Mineralogical
Collections in the School of Mines, in Paris, and specially
entrusted with the examination and translation of foreign
memoirs. He employed the leisure of this modest place use-
fully for himself and for science, engaging for the most part
in journeys of observation and study ; with which, on his re-
turn, he enriched the principal scientific collections, and par-
ticularly the Journal des Mines, where his publications suc-
ceeded each other with a remarkable continuity. The Me-
moir on the Voleanoes of Auvergne and Vivarais, is of the
date of 1804. Nearly at the same time, he published a work
of an entirely different kind, Sur les Levés de Plans Souter-
rains par la methode des coordonées, a method generally fol-
lowed since then, and which he believed he was the first to
discover ; but, though in disuse, it had been known in Ger-
many since 1772. He likewise published in the Journal of
Mines, notices on the Coal-mines of Silesia, on the different
Foundriesof Germany, and on the Steam-engines of the Mines
of Tarnowitz. In 1805, a memoir appeared on the great
Coal-mines of Anzin, in which were interesting and detailed
observations (the first which had been printed), on the singu-
lar and characteristic contortions, which have given a sort of
celebrity in geology to the coal-formation of that country,
and on the passage of large subterranean sheets of water,
which render it so difficult to penetrate to its rich masses of
coal ; a powerful obstacle, in fact, which seems to have been
placed there by nature to defend the approaches to it, as
formerly the dragon of the fable was said to have guarded
the entrance and the riches of the garden of the Hesperides ;
but what obstacle can resist the efforts of that modern Her-
cules, steam ?
In 1806, M. D’Aubuisson again inserted in the Journal of
Mines, the description of a mining operation of the highest
interest, that of a bed of galena, near Tarnowitz, in Silesia,
a description completed by a work on the metallurgic treat-
ment of this mineral. Among other valuable details in these
two memoirs, we find an account of the curious process em-
ployed at Tarnowitz to cross a formation of moving sands by
12 Memoir of M. D’ Aubuisson de Voisins.
means of mining pits, which consists in building a tower of
masonry on the surface of the ground, which is allowed to
sink by its own weight. This process, so original in its in-
vention, had been brought into Silesia by a Frenchman, and
has been since employed with much success, again by a
Frenchman, in piercing one of the most beautiful subter-
ranean works in existence, the tunnel under the Thames.
Also in 1806, M. D’ Aubuisson wrote a first memoir on the
measurement of heights by the barometer, the formula of
which he discussed and modified ; thus forming a prelude to
his more important barometrical works, of which we shall
speak afterwards. He employed another portion of the same
year in experimenting on the useful effects of the hydraulic
machines of Poullaouen and Huelgoat, in Bretagne, and on
the temperature in the interior of mines, in continuation of
studies of the same kind undertaken at Freiberg. We ought
likewise to mention some chemical investigations which
occupied him during this period of his studious life, parti-
cularly researches on the hydrate of iron, by which he shews
that the water in it is combined with oxide of iron in defi-
nite proportion, a circumstance which was not at that time
without novelty.
We now reach the period when M. D’ Aubuisson obtained
that reward of his labours of which he was most ambitious,
because it enabled him to employ the future in satisfying his
tastes, and in prosecuting the object of his long continued
study ; on the 13th February 1807, he was attached to the
Corps des Mines, with the title of engineer. The following
was the occasion of this appointment. The French territory
having become greatly extended, by conquest, the Emperor -
wished that four engineers should be appointed to the new de-
partments which had been formed at the expense of Piedmont,
Belgium, and Switzerland. The members of the engineering
department were limited in number, and two éléves only were
disposable; although it was the rule that it could be aug-
mented only by drawing from the Ecole Polytechnique, yet
the need of men of knowledge and experience being imme-
diate, M. D’Aubuisson was proposed by the Council of
Mines, and soon after nominated. The service of the de-
Memoir of M. D’ Aubuisson de Voisins. 13
partments of Doira and Sesia was entrusted to him. This
was, no doubt, an anomaly, according to the existing rules ;
all that we can say on the subject is, that this anomaly could
not be justified by more real and special merit, by greater
scientific services in the past, and better guarantees for the
future. It was what I may call an extra-legal piece of good
fortune for the Administration of Mines, on which we may
freely congratulate ourselves, for an example attended by
such a concurrence of circumstances and of merit could not
be a dangerous precedent.
M. D’Aubuisson remained five years in Piedmont ; and he
spent them in continual activity, in the midst of numerous
forges, the metalliferous mines of the sub-alpine country, and
the high belt of mountains which bounds it. From time to
time, however, he returned to Paris for the publication of his
scientific labours, which were never for a moment interrupted,
and for which he rendered the advantages of his position, in
the interesting localities around him, immediately available.
The departments which he had to inspect, and which he may
be said to have had to organise in a mineralogical point of
view, were situated on the declivity of the Great Alps; and
of this situation he availed himself for geological study on
the one hand, and on the other for experiments of the highest
interest on the important subject of the measurement of
heights by the barometer.
His geological observations have been summarily stated
in a memoir inserted in the Journal of Mines, vol. xxix.,
under the title of Statistique Mineralogique du Departement de
la Doire. Independently of the interest which always attaches
to the study of a little-known country, the composition of this
work, and the important generalities it contains, recommend
it to attention. It is by no means confined tu mineralogical
observations, but embraces, so to speak, all the details of the
physical and climatolcgical constitution of this side of the
Alps; he describes, in a picturesque style, the disposition
of the valleys, the structure and aspect of the mountains,
the nature of the soil and cultivation ; gives the heights of the
principal summits, many of which had been measured by
the author himself; he likewise states the result of his own
14 Memoir of M. D’ Aubuisson de Voisins.
observations on the limit of perpetual snow, the variation of
culture with the level of the ground, on the height of the
most elevated habitation, and lastly, on that dismal plague
of mountainous countries, well worthy of the attention of na-
turalists, and which engaged the notice of Saussure, cretinism.
His observant mind thus embraced all subjects, and seized
all the details useful or interesting to science. With regard
to the part strictly geological, what appears most prominent
in this memoir, in a general point of view, is the distinctness
and force with which he perceived and pointed out the gradual
passage of the rocks apparently primordial, into formations
which, by their nature and fossils, are unquestionably se-
condary ; a result, it is true, from which M. D’Aubuisson de-
duced no consequences, except in relation to the formations
ealied primitive ; but which, in reality was, after the beauti-
ful work of M. Brochant de Villiers on the Tarentaise, the
second step towards this progressive rejuvenescence of the
formations of the Alps, continued from that time, and com-
pleted in our own day, particularly by geologists of whom
also the Corps des Mines has reason to be proud. These ob-
servations likewise tended to throw light on the transforma-
tion of sedimentary rocks into crystalline rocks, by igne-
ous influence, one of the most positive theorems of modern
geology, but which was then very strange even to the notions
of the author himself. He was led, nevertheless, by his ac-
curacy of observation to a conclusion, which the Edinburgh
School alone, at that time, began to deduce theoretically from
principles of an entirely different nature, and introduce for
the first time into the science.
The work published by M. D’Aubuisson at the same period,
on the measurement of heights by the barometer, a work at
once theoretical and experimental, is one of those which do
him most honour. His abode at the foot of the Alps had
furnished him at once with the idea, and the means of acting
upon it. We have already seen that, in the year 1806, he
had turned his attention to the true form and true value to
be assigned to the different constructions of the barometrical
formula—a formula of which the experiments of Pascal and
Mariotte had laid the first foundation: and which, since
Memoir of M. D’ Aubuisson de Voisins. 15
that time, so many distinguished philosophers, Halley,
Bouguer, Deluc, Laplace, Gay-Lussac, Ramond, Biot, and
Arago, have contributed to establish or bring to perfection.
In his sojourn at the foot of the Alps, M. D’Aubuisson found
a favourable opportunity of submitting this important matter
to the test of rigorous and enlightened experiment. In con-
cert with M. Mallet, chief engineer of Ponts-et-Chaussées,
now honorary inspector-general, he measured by triangula-
tion (and with a precision which the most competent autho-
rities, MM. Laplace, Biot, and Arago, Commissioners of the
Institute, have acknowledged to be perfect); the height of
Mount Gregorie, a peak in the north of Piedmont, about 2000
metres above the sea, having its summit completely insula-
ted. He then measured the same height by means of the
barometer, with all the requisite precautions, on ten different
days ; and the application of his formula to this measurement,
gave him a mean height only two thousandths greater than
the trigonometrical method; a very slight difference, but
which he availed himself of in order to correct the constant
coefficients of his two comparative formule. Lastly, by ap-
plying the different known barometrical formule to the same
measurements, he could submit them to a very interesting
comparative test.
But this was not enough for M. D’ Aubuisson ; he was de-
sirous that his abode among the Alps should enable him to
exhaust all that related to this important subject. He had
still to examine the horary and daily influence on the variable
cards of the barometrical method, to investigate the meaning
and limit of these errors, and the effect of each cause. For
this purpose, he went and set up a barometer at the hospice
of the Great St Bernard, the highest inhabited spot then
known, and for the space of fifty-two days he made conse-
cutive observations, either personally, undertaking frequent
and fatiguing journeys for the purpose, or by means of the
good monks who inhabited the hospice ; those observations
he compared, at the same time, with others made by a baro-
meter stationed’at Turin. This is not the place to enter into
a detail of these interesting experiments ; it may be merely
remarked, that the greatest influence was found to be that
16 Memoir of M. D’ Aubuisson de V oisins.
of the hour, the warmest hour giving the heights sensibly
greater (about a thousandth as a mean of total elevation.)
This influence he ascribed principally to the excess of rever-
beration to which the solar radiation was subject in a low
station, which changed the law of temperature in the strata
of air. 4
All the results above alluded to, were stated in a beauti-
ful memoir read to the Institute in March and April 1810,
which received the most flattering approbation.
But these valuable scientific researches did not make
M. D’Aubuisson forget the duties demanded of him by his
office as an engineer ; on the contrary, he fulfilled them with
an activity and success, to which the peculiar state of this
country gave additional value. During his residences in
Paris, the administration likewise called in the aid of his
knowledge in preparing the law on mines, and on the fune-
tions of the body of civil-engineers ; he thus obtained a claim
to advancement, which, besides, he might have been allowed
legitimately to expect on the ground of age. In 1811, on the
new mineralogical subdivison of the territory, he was no-
minated engineer-in-chief of the arrondissement of Toulouse,
then very extensive.
M. D’Aubuisson’s wishes were thus fulfilled. Restored to
his native country, in a position if not brilliant, on the score
of fortune, at least highly respectable, and calculated to in-
dicate his personal merit; and to this modest position, he
afterwards confined all his ambition, only seeking to adorn
and exalt it by his labours. Many others, in his place, might
have thought that as the future was henceforth secure, the
hour of repose was now come; but such a mind as that of
M. D’Aubuisson knew nothing of cessation or rest. Instead
of looking for a termination to his labours in his new posi-
tion, he only saw an opportunity of enlarging their sphere,
and of being useful, at once to science, to the state, and to
his native city. To the latter, as we shall soon have occa-
sion to mention, he rendered eminent services during a re-
sidence of thirty years, but particularly during the fourteen
years in which he acted as municipal counsellor.
(To be concluded in our next number.)
Some additional Observations on the Urinary Excrement of In-
sects. By Joun Davy, M.D., F.R.S., Lond. & Ed., Inspec-
tor-General of Army Hospitals. Communicated by the
Author.
In a former communication, I noticed the results of experi-
ments tending to prove that the urinary excrement of many
different species of insects in their perfect state—all that I
examined—consisted chiefly of lithate of ammonia. Since
then I have subjected to trial the excrements of caterpillars,
of two or three kinds of butterflies, and also of hawk-moths
and likewise the excrement accumulated in the larva state of
each, and voided by them immediately after quitting the pu-
parium, on assuming the imago form, and preparatory to
taking wing and exercising the functions of the perfect in-
Sects.
The excrement of caterpillars, obtained when feeding on
leaves, was chiefly fecal and very abundant, voided in small
dark cylindrical masses. Acted on by very dilute nitric acid,
and by alcohol, using separate portions, a very little lithic
acid was detected in it, which probably existed as lithate of
ammonia in the excretion, and some hippuric acid, judging |
from the crystals found on evaporation after solution in mu-
riatic acid, and from other properties.
The excrement of the caterpillars of the hawk-moths, when
feeding, was very similar in appearance to the preceding, and
resembled it also in composition. Hippuric acid was detected
in it and lithic acid, and the latter in larger proportion, in-
deed, in one instance, it was to be seen adhering to the little
excrementitious masses as a whitish incrustation. This under
the microscope was found to consist of globules of about
todo00 Of an inch in diameter; and it had the properties of
lithate of ammonia.
The excrement voided by the butterflies I have had under
observation immediately after quitting their puparia, has:
commonly been a brownish turbid fluid. I have detected in
it a very little lithate of ammonia, and a considerable pro-
portion of hippuric acid. In one instance that the fluid had
VOL. XLV. NO. LXXXIX.—JULY 1848. B
18 Dr Davy on the
a reddish hue, it was found to be owing to the presence of a
little purpurate of ammonia. Under the microscope, crystals
were detected in it also of lithic acid.
The excrement of the hawk-moths on quitting their pu-
paria, was a turbid fluid of a reddish-brown colour, with a
sediment of a fawn colour. The sediment, which was very
of an inch in diameter, as seen under the microscope, and
was composed of lithate of ammonia. In the turbid fluid
hippuric acid was detected, and also a trace of purpurate of
ammonia, and of lithate of ammonia.
Urea was sought for both in the excrement of the papi-
lio and sphinx caterpillars, and in that voided on the acquir-
ing of the imago state, but without well-marked results ; in
one or two instances, there were appearances rather indica-
tive of its presence ; and I think it probable, that were larger
quantities of the excreted matter to be examined than I
had an opportunity to collect, it would be found.to be a con-
stituent part, at least occasionally.
The existence of hippuric acid in the urine of the leaf-eat-
ing caterpillars may be considered as pointing to an analogy
between the secretion in them and in the herbivorous mam-
malia. The quantity of urinary excrement formed in the
pupa stage of the insects under consideration, and voided on
their quitting this stage, is remarkably large. It may be
conjectured to be derived from elements obtained from cer-
tain organs of the caterpillar, in its state of transition; and
the large quantity of nitrogenous matter, especially of lithic
acid which it contains, seems in favour of this conclusion.
This composition of the excrement of caterpillars, and of
that voided in the assuming of the perfect form of insect,
leads, in considering what part they may perform in the econo-
my of Nature, to the conclusion, that they are not altogether
destructive, and that, on the whole, they may be more use-
ful to the vegelable kingdom than injurious ; as by manuring
where they have depastured ; and by feeding on the leaves of
some plants, as they commonly do in preference to others,
(one species of caterpillar mostly choosing for its food the
leaves of only one species of plant), checking thereby the ex-
Urinary Excrement of Insects. 19
tension of one kind, and favouring the growth of other kinds.
In illustration of their excrement, acting as manure, I may
mention that I have seen in this island, a field of many acres
of sweet potatoes that was laid bare in a night by the inva-
sion of caterpillars; in the morning scarcely a leaf was left,
and the caterpillars had disappeared ; but they had deposited
where they had thus voraciously fed, abundance of their ex-
crement, almost darkening the ground; and shortly, the plants
vegetated afresh and vigorously, and a good crop of roots
was obtained. The illustration of their promoting the
growth of various species of plants commingled, is best wit-
nessed in flower-beds, and in wild nature, especially within the
tropics, where, under favourable circumstances, the powers
of vegetation are so great, and where, without some check,
such as the one alluded to, the plants of most rapid and vigor-
ous growth would deprive all others, feebler growing, near
them, of nourishment, and would starve them to death.
I have endeavoured to detect the urinary organs in the
caterpillars of the hawk-moths. Their large size was favour-
able to the inquiry ; but I cannot say that I have been per-
feetly successful. On each side of the intestinal canal, there
is a large quantity of yellowish matter, in which, examined
under the microscope, are to be seen innumerable minute
tubes, some of them, no doubt, trachez, others probably ovi-
ducts, and some I apprehend performing the function of se-
ereting urine. Iam led to this conclusion in consequence of
finding that by digesting the yellow matter in very dilute ni-
tric acid, traces of lithic acid are obtained in evaporating the
solution formed, and heating the residue. A small glandular
mass near the anal extremity of the intestinal tube, which I
suspected might be the urinary organ, similarly treated, yield-
ing only negative results.
BarBadors, March 8, 1848.
( 20 )
On the Erratic Basin of the Rhine. By M. A. Guyot.
Communicated by the Author.
The following are the results of M. Guyot’s last investiga-
tions of the erratic basin of the Rhine, during the autumn
of 1844 and the summer of 1845.
This basin, of which we have hitherto known very little,
not to say nothing at all, is the most considerable after that
of the Rhone. It has not, like the latter, a double divergency
in two opposite directions. On issuing from the valley of
the Rhine, at the origin of the lake of Constance, it is from
20 to 25 leagues in breadth and equal in length, in a direction
of north-west and west, which is that of the lake, and it dis-
appears on the declivities of the Wurtemberg Jura, or Rau-
halp, which it nowhere exceeds in height. We may, therefore,
affirm in the present day, that the line of the Jura has served
as a barrier to the Alpine erratic formation, throughout its
whole length ; that this formation has never passed over it,
not even in the region where the conflux of the Aar and
Rhine takes place, although, at this point, the chain under-
goes so considerable a diminution in height that it may al-
most be called a gap.
Limits.—The erratic rocks of the basin of the Rhine are
essentially derived from the three valleys of the anterior
Rhine, the middle Rhine, and the Albula, the two latter of
which unite in the Domleschg, and again join themselves,
above Coire, to that of the anterior Rhine. Further down,
the valley of Praettigau, and especially the great valley of
Montafun, on the right bank, furnish to this basin a contin-
gent of rocks proportionally very considerable.
A little way from its origin, the basin of the Rhine pre-
sents a very remarkable bifurcation ; the erratic formation
diverges not only by the transverse valley which the Rhine
follows from Meyenfield and Luciensteig, but likewise by the
lake of Wallenstadt and the valley of Gaster, where it en-
counters blocks of the valley of Limmat, in the neighbour-
hood of Wesen and Schaennis. There it is gradually pushed
back by the more powerful erratic formation of the Linth ;
M. A. Guyot on the Erratic Basin of the Rhine. 21
it accompanies and mixes with it, and soon appears only in
insulated blocks along the eastern border of the basin of the
Linth. In the neighbourhood of Chateau de Kybourg and
Winterthour, the rocks of the Rhine again meet with their
congeners, which descend by the principal valley by turning
round the mountains of Appenzell.
The principal branch follows the valley of the Rhine. On
the left side, the boundary line runs along the mass of the
Sentis, turns round the mountains of Appenzell, reaching
the summit of the passages, without letting any other debris
escape to the interior of the country than a few small blocks
or rolled pebbles, passes on the heights which overlook
Rheinach and Rorschach, turns to the south-west by the hills
situate to the south of St Gall, reaching nearly to Herisau,
passes to Tegerschen, intersects the plateau de Magdenau,
cuts the valley of Thour transversely near Ionschwyl, then
resuming its normal direction towards the north-west, itruns -
along by Bichelsee and Schauenberg, towards Schlatt and
Winterthour. Further on, it follows the valley of Toss.
and crossing the Rhine near Eglisau, reaches the heights near
Neuenkirch and Du Rauden to the west of Schaffhouse.
The eastern limit, or that of the right side, at first almost
effaced by the immense fall of linestones in the vicinity of
Luciensteig and Balzers, soon rises to a considerable height
on the Frastensersand above Feldlkirch. On the eastern
declivity of this same chain, many hundred feet higher still,
we find the erratic formation of the long valley of Montafun.
To the north of Feldkirch, it runs along the heights of Vo-
lalberg above Embs, of Dornbirn and Sulzberg, passes Holz-
leuten in the neighbourhood of Stauffen, then by the heights
of Ebrazthofen and Isny. Further to the north, the points
of Schellenberg and Pfullendorf, which I owe, the first to M.
De Buch, the second to Professor Walchner, will very nearly
fix the extreme limits of the basin. The rocks of the Rhetian
Alps ascend, we observe, to the summit of the plateaux of
Suabia, and even encroach on the domain of the Danube.
On the east and north, the limit is difficult to trace; the
blocks are small and thinly scattered, for the most part
rolled, lost under the earth or among the accumulation of
22. .M.A. Guyot on the Erratic Basin of the Rhine.
pebbles and worn fragments, the greater number of lime-
stone, strongly striated, and accompanied, as usual, with a
greater or less quantity of mud.
The basin of the Rhine, unlike those of the Rhone and the
Gothard, presents us with none of these enormous blocks
which surprise the geologist, and receive particular names
from the inhabitants of the country. The rolled blocks,
with their angles very much worn off, are very numerous in
it, especially along the sides and extreme limits. The lime-
stone blocks, which are in great abundance, particularly along
the left bank, are rounded and striated. The angular blocks,
and of a certain size, are found chiefly in long trains in the
centre of the basin. The sides of the lake of Constance are
even destitute of large and angular blocks to a distance
of many hundred feet above its level; but the accumulation
of pebbles of the same species are there numerous and ex-
tensive. :
The space comprised between the two branches of the
erratic basin of the Rhine, occupied by the central mass of
Haut-Sentis, and bounded on the south by the chain of Kur-
fiirsten, is destitute of the erratic fragments of the Rhine,
which seem not even to have passed the Col de Wildhaus,
notwithstanding its inconsiderable height of 3600 feet. The
first fragments appear below Wildhaus on the Rheinthal road,
at a height of about 3200 feet. But the Molasse and the
Nagelfiuhe of the whole of this region, and, in particular, of
the valley of Toggenbourg, are covered with numerous lime-
stone blocks, often very angular, sometimes rolled, accom-
panied with considerable deposits of limestone and sand-
stone pebbles. These debris constitute a very characteristic
erratic formation, derived no doubt from the high summits
and valleys of Sentis and Kurfirsten; for we often observe
in the blocks the fossils which characterise the shelly strata
of the neighbouring chains. The general movement or spread
appears to have been directed to the north. The effusion
of these masses has no doubt been arrested or disturbed
by meeting with the erratic rocks of the Rhine ; but the in-
tluence of this basin of the Sentis is felt much beyond its ap-
parent limits by the extreme abundance of the blocks and
M. A. Guyot on the Erratic Basin of the Rhine. 28
limestone debris, the number of which, in this place, greatly
exceeds that of the crystalline rocks of the valley of the Rhine.
An important remark is this, that, from the moment when
these limestones come in contact with the rocks of the Rhine,
the angular blocks disappear, but the numerous rolled blocks
which replace them are almost all strongly furrowed and
striated. This circumstance seems to indicate that the cal-
eareous blocks had already taken possession of these coun-
tries when the erratic rocks of the Rhine came thither, and
that itis to the agent which transported them to these places
that we must ascribe this change in their manner of exist-
ence. .
The existence of this new erratic region proves that, from
the height of these calcareous summits also, has descended
an alluvium, whose characters are absolutely the same as
those of the erratic basins with primitive rocks, and which
has no doubt been dispersed by causes altogether ana-
logous. The insularity of this erratic region in the middle
of the basin of the Rhine, its distance from the central chains
of the Alps, and the calcareous nature of its debris, are a
proof that the erratic phenomenon is not necessarily con-
nected with the presence of the crystalline rocks, as has been
alleged, nor with the greater or less depth to which the val-
leys from which these debris descend penetrate into the cen-
tral chains; but that it rather depends on the conditions of
height which may be met with beyond the principal mass of
the Alps, as well as on their summit. Every orographic mass
sufficiently elevated to become, if its structure admit of it,
a centre of glaciers, may likewise become the centre and
point of departure of a particular erratic formation. It would
seem that facts of this nature are destined to restrict greatly
the field of hypotheses by means of which we may give an
explanation of the erratic phenomena.
The distribution of the species of rocks in the erratic basin
of the Rhine, without being so complicated as that of the
species of the basin of the Rhone, is not less interesting from
its regularity. It is subject to the same law which we have
ascertained to operate in the other basins.
Among the various rocks which have descended from the
24 M. A. Guyot on the Erratic Basin of the Rhine.
high Rhetian Alps by the valley of the Rhine, three may be
ce! as peculiarly characteristic of this basin. These are
the porphyroidal granites of Pontelja, or of Trons, the green
granites of Juliers, and the brown gneiss of Montafun, three
species, each of which corresponds to one of the principal
affluents of the valley of the Rhine, as they have been named
above.
The porphyroidal granites are a species of protogine, dis-
tinguished at first glance, by narrow and elongated rectangu-
lar crystals of white felspar, usually mdcles, from a few lines
to an inch or upwards in length, and which are distinctly de-
lineated in the granitic mass. The quartz is in grains, pretty
numerous, but of small size; the deep-green mica is dissemi-
nated in flakes or masses ; a taleose substance, as in the pro-
togines of Mont Blanc, tinges a part of the masses with a
delicate green, but without ever altering the whiteness of the
large macle crystals ; small linear crystals of black amphibole
appear numerous in some specimens, very rare in others; final-
ly, we notice here and there, in nearly all, a few minute crys-
tals of yellow sphene.
According to the observations of M. Arnold Escher, these
porphyroidal granites come from the ravine of Ponteljas,
scooped out of the southern mass of the Deedi, above Trons,
in the valley of the anterior Rhine. This locality seems to
be the only one that produces them, and indeed I did not
find a fragment of them in this valley behind Trons, nor in
any other of the Grisons.
The granites of Julier are distinguished from the preced-
ing by the absence of the large twin crystals of felspar, by
the abundance and size of the quartz crystals, but above all,
by the predominance and bright hue of the green talcose sub-
stance which colours almost the entire mass of felspar, and
communicates a green colour to the rock, which is not ob-
served in the Ponteljas granites. They are known also, on
the first stroke of the hammer, by their very great tenacity,
which is a property not possessed by the latter. These granites
belong not only to Julier, but in a considerable dearer to the
northern chain of the Engadine.
The gneiss of Montafun has its origin in the masses of
M. A. Guyot on the Erratic Basin of the Rhine. 25
erystalline rocks, among which the bottom of this great val-
ley lies. This rock, of a coarse slaty structure, is remarkable
for the great abundance of brown mica, which gives its gene-
ral colour to the mass; it is distributed in large shining
plates, and in pretty extensive layers; it is less rich in fel-
spar than in quartz, which often forms large irregular crys-
tals, the size of which interrupts the regularity of the laminz
of the rock.
We may add to the three preceding species, as a rock which
usually accompanies the two first, the rose-coloured and
greenish talc-slates and conglomerates detached from the
heights which border the left side of the valley of the anterior
Rhine, and which seem to belong to the formation which
predominates in the mass of Sernfthal. The progress of these
iverse species is as follows :—
The granites of Ponteljas descend from the valley of the
anterior Rhine, which they represent in the plain, always
occupying the left bank in conjunction with the rose-coloured
and green talc-slates. They pass the Col de Tamins and the
valley of Tamina, although in small number. The principal
mass follows the flanks of the Galanda, enters the valley of
the lake of Wallenstadt, covering the declivities above Flums,
on the left bank, as above Wallenstadt and Ammon, on the
right bank. Near Wesen, they are driven back by the red
conglomerates of the Sernfthal, which issue from the valley of
the Linth, and follow the limit of the basin of the Rhine along
the heights indicated above, becoming all the time less nume-
rous and more insulated. I met with some blocks as far as
the heights of Chateau de Kybourg, and in the neighbourhood
of Winterthour. But they do not fill this branch of the basin
of the Rhine only ; we still meet with them, although much
rarer, and mingled with the granites of Julier, on the right
bank of the Rheinthal, along the sides of Sentis below Wild-
haus, and the heights of Stéss. They are still frequent on
the heights which surround St Gall, and along the right bank
of the basin, as far as the vicinity of Winterthour and the
hill of Irchel, when they meet with those which have followed
the first route by the valley of Wallenstadt and the Gaster.
The Julier granites descend the broad valley of Oberhalb-
26 M. A. Guyot on the Erratic Basin of the Rhine.
stein, not entering Churwalden, which, however, would be
the direct line, and which seems quite open for their en-
trance, but follow the course of the Albula, and enter the
Domleschg, without a single fragment passing to the left
bank of this latter valley. We again find them, already
mingled with the porphyroidal granites, at the foot of Galanda
and, as we have said, along the borders of the Rheinthal.
Having reached the lake of Constance, they become the cha-
racteristic rock throughout all the space lying between the
southern bank of the lake of Constance, and the southern
limit of the basin in St Gall and Thurgovia ; they even pass
to the opposite bank, where I have met with them in the
neighbourhood of Mersbourg, and even beyond Ittendorf,
on the Ravensbourg road. Still further on, on the north and
east side, we find them frequently, not in the state of blocks,
but of pebbles.
The gneisses of Montafun descend the valley of that name,
where numerous blocks of very large size cover the sides of
the mountains to a considerable height. They occupy all the
rest of the basin, where they become predominant, running
in a northern direction, with a slight bend to the east, like
the preceding rocks. This is in the direction of Lindau and
Ravensbourg ; but particularly in the neighbourhood of Cha-
teau de la Waldbourg, where they are numerous, and of an
angular form. Further to the east the blocks are rather
rolled, and the species more varied. I have not found any
blocks of Montafun gneiss on the left bank of the lake of
Constance.
We thus perceive, that the law of distribution is the same
here as in the basins of the Rhone and Reuss. The granites
of Ponteljas, which come from the valley of the anterior
Rhine, everywhere keep the left bank, and the gneiss of
Montafun the right bank ; the granites of Julier the centre.
A transverse section of the principal part of the basin, from
Jouschwyl on the Thour to the Chateau of Waldbourg, shews
us in succession the porphyroidal granites on the sides, the
granites of Julier, as far as the lake ; beyond the lake, the
gneiss of Montafun. The respective situation of these species
is the same as that of the valleys from which they originate
On the Depth and Saltness of the Ocean. 27
All the conclusions we have drawn from this law of the
distribution of the species, and from the other circumstances
which, here as elsewhere, accompany the erratic pheno-
menon, in speaking of the basin of the Rhone, are applicable to
the basin of the Rhine. The identity of the general pheno-
mena is complete. Here also it is the law of moraines which
can account for this distribution—a distribution which shews
itself to be regular, notwithstanding the absolute mixture of
Species, such as we must expect in a valley so complicated,
and subject to so many accidents, as that of the Rhine.
On the Depth and Saltness of the Ocean.*
Captain Wilkes, U. 8. N., to whom these subjects were re-
ferred at the last meeting of the Association, said, that he
found it impossible to make a written report upon subjects of
so great interest as were embraced in the inquiry referred to
him. From the little attention that had as yet been given to
inquiries on thése subjects, but few facts had been elicited ;
he should therefore content himself by stating to the Associ-
ation what had been done, although it was comparatively
little, with the hope that the Association would be induced
to turn their attention to the subject as one of great interest
for future inquiry. He stated, that with the depth of the
ocean there were connected many interesting subjects of in-
quiry; among them, its actual depth, its mean temperature
and density, the penetration of solar light, submarine cur-
rents, and the saltness and specific gravity of sea-water.
Although experiments to ascertain the depth of the ocean
have been frequently made, we are as yet ignorant of its
maximum depth, and we continue to be satisfied with the con-
jectures and the results obtained from theory. These, as is
well known, ‘vary in the limit of depth from five to eight
miles.
The greatest depth to which the ocean has been penetrated
* From the Proceedings of the Ninth Annual Meeting of the American As-
sociation of Geologists and Naturalists, at Boston, September 1847.
28 On the Depth and Saltness of the Ocean.
is 4600 fathoms, or 27,600 feet ; no bottom was obtained ; this
was the result of an experiment by Captain Sir J.Clarke Ross,
in lat. 15° S., and 23° W. long. Several experiments have been
made at other points, and some with success, bottom being ob-
tained in apparent mid-ocean, in between 12,000 and 18,000
feet. The ocean has been penetrated in too few places to
afford any satisfactory or decisive results upon so interesting
a subject; and considering the vast space of our globe occupied
by the great ocean, it cannot but strike every one what a
wide field is open for investigation and experiment, and how
many interesting geological results may be elicited and are
connected with these experiments ; sufficient facts have been
developed, to prove that the inequalities of the level of the
ocean’s bed are much more remarkable than those of the
land.
It may excite surprise, that we should know so little on
this point. Navigators, to whom this interesting inquiry
properly belongs, have troubled themselves little about it,
unless it was in some way connected with the safety of their
voyages. The existence of discoloured water has alone in-
duced them to cast the deep-sea lead. There is, however,
some excuse to be made; for though in theory the depth is
easily to be arrived at, yet to obtain it practically is exceed-
ingly troublesome, requiring much time as well as favourable
opportunities.
The mode still practised is the ordinary lead-line. Sub-
stitutes for this have been attempted; many of them are in-
genious, and some useful, but they do not obviate the diffi-
culties, although they give greater accuracy in the results.
Few are aware, that it requires from two to three hours for
a well-appointed vessel to make a sounding to the depth of
1500, or 2000 fathoms, for which opportunities seldom occur ;
calms, or light winds, and a smooth sea, are requisite.
The mode of sounding practised of late by several British
officers to obtain the actual depth, is by attaching a weight
of several hundred pounds to a small cord or spun yarn
wound on a reel, which is carried off as the weight descends ;
on reaching the bottom it is pulled tant and the length ascer-
tained ; the cord being too weak to lift the weight, both are
On the Depth and Saltness of the Ocean. 29
lost,—consequently, the experiments are expensive as well
as inconvenient to make; the time required for the experi-
ments taken in this way, is half an hour for the descent of the
weight ; the line in these cases, instead of being used from
the ship, is lowered from a boat to avoid the drift of the ves-
sel, which is very considerable during the time the weight is
descending ; this renders the experiment more satisfactory
and correct. It will thus be seen, that it is out of the power
of an ordinary vessel to make the experiments. In order that
this interesting inquiry may advance without these difficulties,
_it becomes necessary that some new mode of sounding be
adopted, whereby both the time may be lessened and the op-
portunities multiplied. It has been suggested to obtain an
echo from the bed of the ocean by the explosion of a shell
just beneath the surface, the depth to be measured through
the propagation of reflected sound. The mode which appears
to me more effective, is by the time of descent and direct
waves of sound from an explosion at the bottom, which might
be accomplished by charging the shell with some of the ex-
plosive compounds; the momentum acquired by the descent
of the shell would cause explosion on striking the bottom ;
the great difficulty which seems to present itself, is the pre-
servation of the charge of the shell from damage by the enor-
‘mous pressure to which it would be subjected in its descent.
Such experiments would naturally lead to interesting inves-
tigations relative to the descent and movement of bodies
through water, and result in establishing the laws to which
they are subject; an inquiry that has been but partially car-
ried out.
Although the experiments to ascertain the depth of the
ocean have been few, and without any regular order, yet they
afford evidence, and prepare us for some interesting results in
future. Among them is one, that the great depressions or sub-
marine valleys run nearly at right angles to the great mountain
chains of this continent: for instance, we are led to believe that,
at the equator, there is a depression to nearly the 5th parallel
of south latitude, where a ridge occurs ; at the 15th parallel,
we find another depression ; 10° farther south, we have an-
other ridge ; it again deepens and rises twice towards the
30 On the Depth and Saltness of the Ocean.
polar circle. These are, it is true, but conjectures derived
from detached and isolated trials, and may not be confirmed
by future and well-conducted experiments ; they are only ad-
duced here to shew the field open to investigation, and to
prompt to measures that the Association may deem necessary
to secure results. A well-directed series of experiments taken
with the imperfect means we now have, could not fail to
make us acquainted with the submarine valleys and ridges
which traverse our globe, and, in time, give us sections of the
beds of the ocean. There are many opportunities enjoyed by
the commanders of our men-of-war that might be taken ad-
vantage of whilst proceeding to and returning from the dif-
ferent foreign stations; and, I make no doubt, that these
would be readily authorised by the distinguished gentleman
who now presides over the naval service. All that is required
is, for this Association to take some measures to forward this
subject, and to point out positions at which it would be most
desirable to obtain results. If those who have the direction of
foreign navies could be induced to join, we should be enabled,
in a very few years, to exhibit complete sections of the oceans
and seas, and full investigations into the phenomena con-
nected with the ocean.
Although the actual depth of the ocean has not yet been
successfully determined, the numerous trials have resulted in
determining satisfactorily its mean temperature and density.
Its mean temperature is nearly 39°:5’ ;* and, according to
Captain Ross’s experiments, the zone of mean temperature
lies between the parallel of 54° and 60° of south latitude, not
only at the surface, but to as great a depth as the ocean has
been penetrated. Future trials will, in all probability, re-
duce it to narrower limits ; its position in the northern hemi-
sphere remains yet to be ascertained. This mean tempera-
* T am aware that several distinguished navigators and others have reported
different results; among them, Mr Lenz even places it down to 36° and 37°,
which they report having met with in the tropics at nearly 1000 fathoms. From
our own experiments, and from those of many others, I cannot but believe that
some error has occurred. Lam well satisfied that so low a temperature will not
be obtained within the tropics at any depth, unless through the agency of sub-
marine currents.
On the Depth and Saltness of the Ocean. 31
_ ture is met with both within the polar circles and in proceed-
ing towards the equator. In the higher latitudes above 60°,
the ocean, in descending, increases in temperature until it
arrives at its mean point; while proceeding towards the
equator, it decreases from the surface downwards ; this de-
crease beyond the tropical circle is about twenty-three fathoms,
for every degree of latitude. Within the tropics itis 1° for
every thirteen fathoms of depth until 400 fathoms, after
which it requires a descent from 200 to 300 fathoms to effect
a like change.
_ From the observations of Admiral D’Urville, it would ap-
pear that the waters of the Mediterranean do not follow the
rate of descent of the Atlantic and Pacific Oceans. He esti-
mated the mean temperature of that sea, below 200 fathoms,
at 55°, and this from the fact of his having obtained that tem-
perature at the depth of 1000 fathoms. If this be so, it leads
to an interesting inquiry as to whether it may not be in con-
sequence of the vast internal fires that are known to prevail
in the countries that surround it.
The penetrations of solar light, or the depths at which it
becomes totally absorbed, is another subject which claimed
particular attention during the cruise of the Exploring Ex-
pedition. The mode of obtaining results was to let down a
pot, bottom upwards, pamted white, some eighteen inches
in diameter, by the deep sea-line until it was lost sight of,
noting the depth at which it disappeared, and then again its
reappearance, the mean being taken for the result ; these sel-
dom differed more than a fathom; the eye was placed five
feet above the surface in the direction with the line by which
the pot was held. It would appear at first that the depth at
which an object could be seen would depend upon the inten-
sity as well as the angle at which the rays of light fell upon
the surface of the ocean. They undoubtedly have some effect,
but seldom made a greater difference than one and a half fa-
thoms. Under different latitudes, and in different tempera-
tures of the water, the anomalies far exceeded this, and were
indeed too great not to excite inquiry and call attention to
other causes. There is little doubt that the great cause of the
variation noticed in the temperature of the waters affected in
r
32 On the Depth and Saltness of the Ocean.
a great degree the transmission of the rays of light or their
absorption. In water at the temperature of 78° to 80°, the
white object described was discernible at a depth of 180 feet,
while, in water at 36°, it was lost sight of at 40 feet. The
object gradually diminished until it disappeared. Trials were
made frequently, and at every hour in the day, from early in
the morning till late in the evening, the altitude of the sun
being measured at each trial. These experiments took place
when the sea was nearly calm, and quite smooth ; the great-
est depth at which the object could be perceived was 30 fa-
thoms, or 180 feet.
The next phenomenon connected with the depth of the
ocean, is submarine currents. They exist in various parts of
the ocean, where they have been traced, and are indicated by
their low temperature. Their actual limits, as to depth,
have not as yet been determined ; but they are found to pre-
vail at from 500 to 600 feet below the surface. They are so
immediately connected with the dynamics of the ocean, that
the investigation into their direction and causes has long
obtained attention.
The saltness and specific gravity of the sea have been fre-
quent subjects of inquiry. The results of the Expedition will
throw much light upon this subject. The specimens of sea-
water obtained in different latitudes were, on the return of
the Expedition, placed in the hands of one of our most distin-
guished associates, Dr C. T. Jackson, of Boston, whose ability
as a chemist is well known to the country. He has analysed
them, and as it will yet be some time before the full results
can be published in the volumes of the Expedition, the Asso-
ciation will be gratified by a knowledge of his method of ana-
lysing, as well as by a few of the results.
Method of Analysis— The specific gravity of the waters
was taken in a small flask, with a neck of about one-fourth of
an inch in diameter. A quantity of water, equal to 1000
grains of distilled water, was evaporated slowly to dryness
in a platina capsule, carrying the heat to 300° Fahr., then
weighed the contents by counterpoising—dissolved out the
muriates of lime and magnesia by absolute aleohol—filtered,
dried, and weighed the insoluble part. The soluble part was
On the Depth and Saltness of the Ocean. 33
evaporated in a counterpoised platina capsule and weighed
—dissolved out in acidulated water, and precipitated the lime
by oxalate of ammonia—filtered, dried, ignited, adding a few
drops of the carbonate of ammonia, and weighed, which gave
_ the quantity of carbonate of lime, from which the calcium
‘and chloride of calcium was calculated. The magnesia was
then precipitated by phosphate of soda and ammonia, filtered,
dried, ignited, and weighed ; from the resulting biphosphate of
magnesia, the quantity of chloride of magnesium was calcu-
lated.
“The matter insoluble in absolute alcohol was dissolved
in hot distilled water, and the part insoluble in water was
ignited, dissolved in acid, filtered, and added to the aqueous
solution. To this added ammonia, which threw down the phos-
phates filtered, dried, ignited and weighed. To the solution
then added oxalate of ammonia, to precipitate the lime, fil-
tered, dried, ignited, and weighed ; from the carbonate was
calculated the lime. To the remaining solution phosphate of
soda and ammonia was added, which threw down the mag-
nesia,—filtered, dried, ignited, and weighed ; from which cal-
culated the magnesia.
*« A separate quantity of the water was operated on for the
sulphuric and carbonic acids and chlorine. To the water was
added baryta solution, which threw down the sulphuric and
earbonic acids—filtered, washed slightly, and rapidly dried,
ignited, adding a few drops of carbonate of ammonia, and
weighed, then dissolved in muriatic acid, which dissolved the
carbonate of baryta, leaving the sulphate—filtered, dried,
ignited, and weighed; from the sulphate of baryta the sul-
phuric acid was calculated.
“ Subtracting the’weight of sulphate of baryta from the
sum of the weights of the sulphate and carbonate, gives the
quantity of carbonate, from which the carbonic acid is calcu-
lated. To the solution, after separating the sulphuric and
carbonic acids, and the excess of baryta, a few drops of nitric
acid were added, then nitrate of silver, which threw down the
chlorine,—filtered, washing with acidulated water, dried and
weighed, from the chloride of silver the chlorine was calcu-
lated.
VOL. XLY. NO. LXXXIX.—JULY 1848. c
34 On the Depth and Saltness of the Ocean.
“The quantity of soda and sodium was found by subtract-
ing the sum of the weights of the other ingredients from the
whole weights of the dry salts obtained by the first evapora-
tion. Four or five specimens of water were examined for
iodine, bromine, and potash, of which no traces were found.
“The filtering paper used was the fine white unsized India
paper. Equal double filters were used throughout, burned
separately in platina crucibles over the spirit-lamp, and
weighed against each other; for the greater part of the salts
the filters were counterpoised previous to filtering.
“The water used was distilled in Bohemian glass retorts,
and was absolutely pure. All the tests and re-agents were
prepared in Dr Jackson’s laboratory, and were proved to be
pure before employing them in analysis. The balance used
in taking specific gravities, and for weighing the products of
analysis, was made by Chemin of Paris, Fr, and is sensible
to the ;3,th of a grain.” All the tables comprising the ana-
lysis of the waters will be given in the volumes of the Expe-
dition, the two following will shew the ingredients of sea-
water as determined by the above method by Dr Jackson.
Analysis’ of water from the depth of 100 fathoms, in lat.
63° 18, S. long. 55° W. :—temperature at surface 31°, below
30°. March 4, 1839. Specific gravity of the water = 1-026 ;
temperature 60°; bar. 30-05.
A quantity of water equal in bulk to 1000 grains of dis-
tilled water evaporated, gave—
Grains. Grains.
Saline matter, : ; : . = 36:00
This saline matter analysed, yielded chlorine, 20°73
Sulphuric acid, 1:29
Carbonie, 1:29
Phosphorie, 0:06
Soda and sodium, LOZ
Magnesia, 1°64
Lime, ‘ 2 0°83
Oxide of iron, trace
= 36°00
Water from the depth of 450 fathoms :—temperature at
that depth 44° 5’; temperature of surface 74° ; lat. 17° 54’S.,
lon. 112° 53’ W., July 29, 1839.
Specific gravity = 1:0275 ;
On the Depth and Saliness of the Ocean. 35
temperature 60°; bar. 30-05. A quantity of water equal in bulk
to 1000 grains of distilled water evaporated, gave—
Grains. Grains.
Saline matter, 5 ; 2 i = 37°9
This saline matter yielded, chlorine, 20°40
Sulphuric acid, ; : : 2°43
Carbonic, : - : : 0°68
Phosphoric, : : ; 0:09
Soda and sodium, 2 : : 10°76
Magnesia, . - : : 2°48
Lime, F : i ‘ 1:06
Oxide of Iron, : j : trace
= 37°90
Captain Wilkes, before concluding, alluded to the results
of the Exploring Expedition, and gave some account of
the progress that was making in their publication. At the
same time he presented for the inspection of the Associa-
tion some three hundred proofs of the plates of Natural
History, a part only of those now in the engraver’s hands,
which he trusted would prove of interest to the Association,
as shewing not only the progress of the work under publica-
tion, but the advancement of American art. For the beau-
tiful manner in which they are got up and executed, we were
chiefly indebted to Mr Drayton, one of the artists of the Ex-
pedition, who has charge of the department of publication,
and to whose talents and exertions he felt great pleasure in
making this acknowledgment, and expressing how much the
Expedition, the country, and he himself, were indebted to
him. Captain Wilkes also gives strong hopes that the edi-
tion of the work of the Exploring Expedition will be en-
larged, and he hoped that it would be in the power of all to
obtain a complete copy of the work ; at present they were
making every exertion which the ability of the country and
due economy would permit, to forward it to completion. The
Committee of Congress, who have the publication in charge,
have every desire to enlarge it; but they have deemed it
proper that the whole work should be first completed, and
then it could not be doubted but that the liberality of Con-
gress would cause the publication to be extended, so as te
place the whole within the means of every institution in the
country.
36 Professor Connell on Carbonate of Copper and Zine.
Professor Agassiz here took occasion to express his opi-
nion of the Expedition, and spoke of the results in the high-
est terms. He bore testimony to the beauty as well as ac-
curacy of the engravings, acknowledging that they were not
surpassed by any that had hitherto appeared in Europe.—
(American Journal of Science and Arts, Second Series, No.
13, January 1848, p. 41.)
Notice of Carbonate of Copper and Zine from Matlock. By
Professor A. CONNELL. Communicated by the Author.
A pale-green mineral from Matlock, with a laminated
structure and pearly lustre, and disseminated in small por-
tions through the matrix, was some time ago put into my
hands by Mr Brook, to ascertain if it was a carbonate of
zine and copper, and I accordingly found it to be so. I at-
tempted a quantitative analysis with 3°16 grains of the mine-
ral, and obtained by ordinary methods—
Carbonic acid and water, . : * Zo
Oxide of copper, . : ; : 32°5
Oxide of zinc, ; F ‘ 42°7
Magnesia, : : : ; trace
Lime, c : : ° trace
102-7
This result might correspond to an atom of dicarbonate
of copper and zine combined with an atom of water,
CuO )
21 7n0} CO? + HO
which would give 27:9 per cent. of carbonic acid and water ;
but the smallness of the quantity prevented the determina-
tion of the relative quantities of carbonic acid and water.
The mineral seems to be either identical with or nearly allied
to Aurichalcite.
T at one time thought I had got traces of a substance con-
tained in it which I could not identify with any known body ;
but Mr Tennant of King’s College, London, having kindly
procured for me several specimens of the mineral from
Matlock, I was enabled to satisfy myself that no such body
Plate II. ; Edin New Phil. Journ. Vol XLV. p.36,
4. Tong Ditch - 15 Faces *
B. ShortDitch 33 Laces
D. Round Pit
. Long Fit
” Graves
Lowlevel Ground .
Fig.0. Fig. ,
Lith. Edinburgh
“alue of different kinds of Coal for Illumination. 37
was present, although the specimens could hardly have
yielded a larger quantity of pure and unmixed mineral to
make an analysis on a larger scale.
‘xe Value of different Kinds of Coal for the
ination ; and on Methods not hitherto prac-
ining the Value of the Gases they afford.
"FE, M.D., F.R.S.E., F.R.S.S.A., Professor
King’s College University, Aberdeen, &c.
by the Royal Scottish Society of Arts.*
lished in the Transactions of the Society for
vecount of numerous trials made with the
ing the value of different kinds of coal for
illumination. Having been again engaged
seriments for the same purpose, I have been
some of the results public, because I con-
‘e interesting, and lead to valuable practical
hich I have had in view were to ascertain,
nov Olay the ve . rarative amount of light afforded by the gases
which the coals yield, but also the durability of these gases,
so as to enable me to fix, as far as possible, their comparative
value, and, consequently, their comparative expense, for the
purpose of illumination. Besides these, however, my atten-
tion was drawn to other circumstances connected with the
consumption of gas, which, strictly bearing on the other part
of the inquiry, are of importance.
1. Quality of the Gases.
In estimating the quality of coal-gases, and, consequently,
fixing their comparative value for the purposes of illumina-
tion, we must take into account both the light afforded, and
the time required for the consumpt of equal volumes.
In trying the former, I have, in the following experiments,
invariably had recourse to the method mentioned in my for-
mer papers, viz., the condensation by chlorine, and in which,
* Read before the Society 24th April 1848.
38 Dr Andrew Fyfe on the Comparative Value of
now that the trials have been greatly extended, I place the
utmost confidence.
For ascertaining the latter, I have followed the usual
method, an accurately-adjusted experimental metre; by which
the times required for the consumpt of equal volumes, burn-
ing under similar circumstances, and also the quantity con-
sumed in equal times, were easily determined. The jet burner
was the same in all the trials.
I consider both of these circumstances absolutely necessary,
for, though some have insisted only on the one, and others
on the other only, yet, unless both be taken into account, we
do not arrive at the true value of the gases, and, consequently,
cannot compare one with another for the purpose of illumi-
nation. Thus, if two gases afford, by their combustion, from
the same or similar burners, with the same height of flame,
the same light; but if a foot of the one lasts an hour, and a
foot of the other an hour and a-half, then the latter is one-
half more in value than the former for yielding light, because
it is giving the same light for one-half more time ; or, which
is the same thing, one-half more of the former must be used
so as to complete the time which the latter will burn. This.
T regret to say, has been too often overlooked by many in
estimating the value of coal-gas.
As the chief object I had in view was, not the comparison
of the light afforded by coal-gas, or its expense, as compared
with other sources of light; but merely the value of the gases
as compared with one another, when obtained from different
coals, I shall commence with that got from English caking
coal, and take it as the unit for comparison.
English Caking-Coal Gas.—The gas from this kind of coal,
on which my experiments were made, was that at New-
eastle ; others were also procured by means of an experimen-
tal apparatus, fitted up expressly for the purpose. The con-
densation by chlorine in the former, was, on an average of
several trials, 4:33 per cent.
The specific gravity, at Th. 60, B. 30, was, 420.
The durability, with a four-inch flame, from a platinum
jet, jd of an inch in diameter, was, 1 cubic foot in 50 mi-
Different Kinds of Coal for. the purpose of Illumination. 39
nutes 30 seconds. The pressure by water-gauge at the bur-
ner was 11ths of an inch.
From 1 ton of coal, about 8000 cubic feet of gas are obtained.
The gases obtained with my experimental apparatus, from
a variety of samples of the same kind of coal, both lately,
and several years ago, were very nearly of the same compo-
sition. Different heats were used in driving off the gas, with
the view of finding the best heat. The condensation by chlo-
rine varied from 3:5 to 55; the average of the trials, amount-
ing to eight, was nearly 5. The durability varied from
47’ 20” to 53’ 30” ; the average being 50’ 25”.
The average specific gravity of eight different gases was
464, the highest being 512, the lowest 414.
As above mentioned, I take the gas from this kind of coal
for illuminating power and durability, and, consequently, for
value, as my standard of comparison.
English Cannel-Coal Gas.—The gas obtained from this kind
of coal, such as that from Wigan in Lancashire, with which
Liverpool, Salford, and other places are supplied, and that
from coals found in different parts of Yorkshire, which are
occasionally used at Manchester, are very nearly of the same
quality.
The Yorkshire Parrot Coal, in its appearance and quality,
is altogether different from the English caking coal. It
more nearly resembles the parrot coal of Scotland. The con-
densation by chlorine was 7°66 ; the durability, 52’ 30’; pres-
sure at burner, 3%.
Different Kinds of Coal for the purpose of Illumination. 45
compared with the English caking-coal gas, is 1 to 1:3;
taking the value of the gases into account, the price paid, for
equal amounts of light, is as 25 to 100; accordingly, to hight
to the same extent with these gases, the expense for the
English gas is four times as great as that for the other.
At 6s. it would be 30 to 100, and at 6s. 6d. it would be 33 to
100; and hence the price paid for equal amounts of light
varies from one-third to one-fourth of that paid for the En-
glish caking-coal gas.
I have given the comparative value of the English parrot-
coal gas, and of the Scottish as 1 and 2-7, the average price
for the former being 5s., that for the latter 5s., 6s., and 6s. 6d.
For the first, the price paid being the same, the expense for
equal lights will be inversely as the value of the gases ; 2°7 to
1; at 6s. 6d., the highest charge, the comparative expense
is about 2 to 1. Accordingly,.the expense paid for the same
extent of lighting by these gases, varies from about 2 to 2}
for the English, to the Scottish as 1; that is, the expense for
a given amount of light, for a certain time, by Scottish gas
being 1, that for the sae light, during the same time, with
the English parrot-coal gas, is from 2 to 23, and for the
English caking-coal gas, from 3 to 4, according to the price
paid for the Scottish gas.
In making these remarks regarding the value of the
gases in different places, and the consequent prices paid
for equal amounts of light, I trust it will not be supposed,
that I mean to insinuate that the price paid by consumers of
gas in England for their light is too great, and that conse-
quently, it ought to be reduced, so as to bring it to a par,
or nearly so, with that paid in Scotland. So far from that
being the case, I believe, that, at present, some English gas
companies are charging for their gas a price which does not
remunerate them; and that, instead of it being lowered,
it ought to be raised. It must be borne in mind, that the
price of gas, like that of other manufactured goods, must be
regulated, in a great measure, by that paid for the raw ma-
terial ; and it so happens that, in England, they are not.so
fortunate as we are in Scotland, where there is a coal, which,
though much more expensive than the English coal, yet is
superior to it for the manufacture of gas; in so far that it
46 Dr Andrew Fyfe on the Comparative Value of
yields an article of much higher value for the purposes of
illumination ; but then, were this coal used in England, it
would, most probably, owing to carriage, &c., become so ex-
pensive, as to cause the charge for the same light to be more
expensive than it is at present.
In considering the results of the trials now recorded, the
most superficial observer must be struck with the remark-
able fact, that gases, having the same illuminating power,
require, with the same burners, very different times for
the consumpt of equal volumes; and hence, as I have al-
ready said, it is necessary, in ascertaining the value of a
gas, for the purposes of illumination, to take into account,
not only the illuminating powers, but also the durability.
Though I alluded to this in a former paper, published in
the Transactions of the Society for 1842, my attention has
been more particularly drawn to it during the investigations
in which I have been lately engaged, by observing the strik-
ing difference between the durabilities of gases obtained from
Scottish cannel coals, procured from different districts ; and
hence, the remarkable circumstance, that two coals may both
yield the same quantity of gas, and which gases, when burned
under similar circumstances, are of the same illuminating
power, yet these coals may be of different value for the manu-
facture of gas, in so far, that the gas from the one will burn
a longer time than that from the other will do, when con-
sumed in the same way. This is well illustrated with the
coals of the Lothians, and of the west of Scotland. Thus,
the average condensation by chlorine, of the gas from the
Marquis of Lothian coal, was, in my trials, 13-125, the average
durability 59’30"; while, with the Lesmahago coal gas, the
former was 15-77, but the latter was only 62’ 24’. Had the
one been in proportion to the other, the durability ought
to have been 71’ 30”, or nearly so. The same remark is ap-
plicable to the varieties of coal from the west of Scotland,
when compared with one another. Thus, the average indi-
cation by chlorine, with the Skaterig and Knightswood coal
gas, was 9, the durability 46’ 45”. With the Lesmahago, as
above, they were respectively 15-77 and 62’ 24”. The latter, to
keep pace with that of the former, ought to have been 81-54”.
Different Kinds of Coal for the purpose of Illumination. 47
I have observed similar results in trials which I have
lately made. Thus three coals, submitted to experiment,
yielded gases, the indication of which, by chlorine, was 14 ;
the durability in the one being 57’, in the other two 66’; and
again, with other gases, in which the condensible matter was
as high as 19 and 22, the durability did not exceed 77’ and
81’: In numerous trials I found that the gas from English
caking coal gave condensation by chlorine 4:33, and dura-
bility 50’ 30’, or nearly so. That from Wigan cannel coal
had condensation as 7-5, but the durability was only 57’ ; the
Yorkshire cannel-coal gas was, condensation 7:66, and dura-
bility only 52’ 30’.. Had the durability of the English can-
nel-coal gas kept pace with the condensation test, it ought
to have been at least 87’ instead of 52’ and 57’.
It is evident from this that the durability is affected by
other circumstances than the presence of the ingredient,
whatever it may be, which causes the condensation by chlo-
rine, in other words, than by the illuminating power.
Considering this still farther, I observed a remarkable
coincidence between the durability and the specific gravity,
as is shewn in the following table :—
Sp. Gr., | 620 | 627 | 645 | 659 | 704 740 836
Dur., 55 64’ 66° |- 67" | '77"5" 4°91"-7” | 106"
In the above table it is shewn, that as the specific gravity
becomes greater, the times required for the consumpt of
equal quantities become longer ; but the increase of the one
does not keep pace with that of the other. There is, how-
ever, some connection between them, and on farther investi-
gation it occurred to me, that perhaps the consumpt of
gases by combustion is regulated by the same law as the
diffusion of gases, as pointed out by Professor Graham, viz.,
that under equal pressures the diffusion is inversely as the
square roots of the specific gravities. Accordingly, in equal
times, the conswmpt should be inversely as the square
roots of the specific gravities ; and, conversely, the times for
the consumpt of equal volumes, from similar burners, and
under the same circumstances, will be as the roots of the
gravities,
48 Dr Andrew Fyfe on the Comparative Value of -
Again, if this be true, then, under different pressures, the
escape should be as the square roots of the pressures ; and,
accordingly, the time for equal consumpts should be inversely
as the roots of these pressures.
To put this to the test of experiment, I procured a pla-
tinum jet, furnished with a graduated pressure gauge, and
adapted it to an experimental metre, by which I could con-
sume the gas, under the same and different pressures, and
mark the quantity consumed in a given time; and conse-
quently the times for the consumpt of equal quantities. The
gauge had a vernier fitted to it, by which I could easily read
off to one-hundredths of an inch. The temperature and baro-
meter were also noted for each experiment, and the specific
gravity, when necessary, was ascertained in the usual way.
The following are the results of trials made for the pur-
pose of putting these opinions to the test.
Consumpt of Gases under different Pressures.
Numerous experiments were made for ascertaining this,
first with gauges of small diameter, the results of which did
not agree with each other; but when the diameter was about
half-an-inch, they more nearly corresponded.
I give the following from among many :—
Consumpt
by Caleu-
lation.
Square
Burners. root of
| Pressure.
Consumpt
by Metre.
7:07 5°07
10 7°06
14:14 9.64 10°14
Different kinds of Coal for the purpose of Illumination. 49
The following are the results with different kinds of bur-
ners, the trials having been conducted with the view of ascer-
taining the illuminating power by these burners :—
ee ee ig | ala, 1.008
pot imag bl A Be ete aA
ee ee eee eee
tangs tating, {/ 479 | 52°] $2] 5,
From the above it will be seen that the escapes are very
nearly as the roots of the pressures.
(To be concluded in owr next Number.)
On the Parallel Roads of Lochaber. By JAMES THOMSON, Jun.,
M.A., Glasgow College. Communicated by the Author.*
The Parallel Roads, Shelves, or Terraces, of Lochaber,
constitute a wonderful inscription, traced by the hand of
Nature, over the surface of a wide range of mountains and
glens. To interpret this writing, and to disclose the story
which these mysterious but clearly-marked characters trans-
mit, has long been an object of much interest, as well as of
great perplexity, to geologists. As yet, however, no one has
succeeded in arriving at an explanation of the subject, which,
after having undergone the scrutiny of others, has given
general satisfaction ; and scientific men are still, perhaps, as
much divided in opinion as ever in regard to the nature of
the operations by which they suppose these terraces to have
been produced. Two papers, taking different sides on this
question, have appeared in the last two numbers of Jame-
son’s Philosophical Journal,—the first by Mr David Milne,
* Read before the Royal Society of Edinburgh, 6th March 1848.
On reading this paper, consult the Map of the Shelves or Parallel Roads
of Lochaber, in vol. xliv. of this Journal.
VOL. XLV. NO. UXXXIX.—JULY 1848. D
50 Mr Thomson on the Parallel Roads of Lochaber.
and the second by Sir George S. Mackenzie. The new and
very interesting discoveries which have lately been made by
Mr Milne in his researehes among the hills, are brought for-
ward by both writers in confirmation of their respective theo-
ries. These discoveries, however, when taken in connection
with the highly important principles of the motion of glaciers
recently developed by Professor Forbes, appear to me to be
far more strongly confirmatory of the leading features of the
explanation given by Agassiz; at the same time that they
enable me to develop this explanation more fully, modifying
and correcting it in some degree, so as to make it accord
with the new facts and principles, and thus putting it in a
form in which, to me at least, it appears so satisfactory as
to leave scarcely the slightest doubt of the agency of ice in
the formation of the Parallel Roads.
Mr Milne’s paper may be regarded as consisting pri-
marily of two parts,—the object of the one being to prove
that the terraces are the beaches of lakes which have been
maintained among the hills by barriers occupying the lower
parts of the glens; and the object of the other, to shew that
these barriers consisted of earthy detritus, and to explain
the way in which he thinks they may have been formed, and _
subsequently removed.
His explanation differs from those given by Dr MacCulloch
and Sir Thomas Dick Lauder in 1817 and 1818, principally
in his attributing the removal of the barriers not to any vio-
lent convulsions of nature, but to the gradual operation of
existing causes. These, if I fully understand his statements,
he supposes to be the erosive action of the waters of the lakes
themselves, combined with that of rivers and streams. On this
subject he says—‘* My explanation of the Lochaber shelves
depends entirely on the supposition that the valleys were, in
the lower parts of them, filled up with detrital matter ca-
pable of being gradually worn down and washed away.” Sir
George 8. Mackenzie, although there is much of his reason-
ing which I do not consider satisfactory, appears to succeed
completely in confuting the explanation given by Mr Milne,
so far as it depends on the supposed existence of earthy bar-
riers. On the other hand, Mr Milne proves, I think beyond
Mr Thomson on the Parallel Roads of Lochaber. 51
the possibility of doubt, that the Parallel Roads are the
beaches of ancient lakes, which have been maintained among
the mountains by barriers across the lower parts of the giens.
With reference to objections to the supposed existence of
barriers which had previously been brought forward, Mr
Milne remarks—“ These objections resolve entirely into the
difficulty of explaining the disappearance of the barriers,
which must have dammed back the water in the valleys:
but it would be no good reason for rejecting an explanation
founded on the existence of barriers, even though we could
not very clearly account for the disappearance of them, pro-
vided that there is direct and conclusive evidence that such
barriers existed. Now, I conceive that there is such evi-
dence furnished by the considerations before referred to.”
Ideas similar to these of Mr Milne had also occurred to Sir
Thomas Dick Lauder nearly thirty years ago, and, in a paper
which he laid before the Royal Society of Edinburgh, they
are expressed in the following terms :—‘“I believe it will
be readily admitted, that it is much easier to suppose the
existence of former barriers, than to discover the means
which operated in their removal; but it must be also
granted, that the difficulty of accounting for the destruction
of such large masses, does not by any means imply that they
never had any being at all, particularly where a number of
facts remain to lead us to an opposite conclusion. From all
the present appearances it is extremely probable that the
barrier of Loch Roy was not only very thin, but of soft ma-
terials, at the two parts which have been removed.”
Thus, both Sir Thomas Dick Lauder and Mr Milne have
come decidedly, and, I think, with good reason, to the conclu-
sion that barriers did exist ; but then we are by no means ob-
liged to assume, that these were composed of earthy materials.
It is in this assumption, in fact, that all the difficulties con-
nected with the*explanations given by these two writers are
involved; and to me it seems perfectly clear that the bar-
riers in reality were formed of glaciers.
The glacial explanation of the Parallel Roads given by
Agassiz in his paper in Jameson’s Journal for 1842, was
necessarily imperfect in its details. Sufficient facts in regard
52 Mr Thomson on the Parallel Roads of Lochaber.
to the phenomena of the terraces themselves, and true prin-
ciples of the motion of glaciers, were then wanting. Had these |
been within the reach of Agassiz, he could easily have modifi-
ed his explanation so as to remove all valid objections which
have been brought forward against it, and could have shewn
the invalidity of others which are still adduced, but which, I
think, will not be ‘admitted by those who have duly appre-
ciated the principles of the viscidity of glaciers, as developed
in the theory of Professor Forbes. The object of Agassiz,
however, at that time, was probably rather to adduce the
Parallel Roads as confirming his grand idea of the former
extensive prevalence of ice in these latitudes, than to enter
fully into the details of the mode in which the roads had
been produced; and in representing his supposed glaciers on
the map which accompanies his paper, his intention was,
perhaps, not so much to assert that the glaciers had acted
exactly in the way he indicated, as to illustrate the suppo-
sition that glaciers, acting in some such way, would be found,
in the end, fully to explain all the phenomena. Be this as
it may, Mr Milne succeeds in shewing that the explanation
by means of the supposed glaciers is inconsistent with ob-
served facts. He then goes on to assert, that glaciers could
not possibly have penetrated to the places where their pre-
sence would actually have been required. This statement,
of course, constitutes the turning point of the whole ar-
gument, since, if it were correct, it would overthrow the
glacial explanation. I hope, however, to be able, in what
follows, to give good reasons against its soundness; but, in
the mean time, it will be necessary to advert to the facts
which invalidate, in its details, the explanation given by
Agassiz.
Previously to the researches of Mr Milne, it had been
known that there exist three “ summit-levels,” or “ water-
sheds,” in connection with three of the Parallel Shelves; but
the existence of a fourth had not been noticed, and it had
even been asserted by Mr Darwin, that “ the middle shelf of
Glen Roy is not on a level with any water-shed.” Mr Milne
has, however, found the wanting water-shed in Glen Glaster,
a small glen which, though branching up from Glen Roy near
Mr Thomson on the Parallel Roads of Lochaber. 58
the bottom of it, does not appear to have been visited, and
certainly has not been correctly described by any former
observer. But this is not all. Mr Milne has also traced
the channel of an ancient river, proceeding from the water-
shed in question, down into Glen Spean, and there termi-
nating in a huge delta, or alluvial deposit, at the only shelf
which winds round the sides of the latter glen, thus marking
the point where the turbid waters of the river were swal-
lowed up under the stagnant surface of the lake which, by
these same indications, is palpably shewn to have stood in
Glen Spean on a level with the lowest shelf, at the time when
Glen Roy was occupied with water to the height of the shelf
next above.
In connection with these circumstances, Mr Milne finds
that the uppermost shelf of Glen Roy does not, as was erro-
neously indicated on Sir Thomas Dick Lauder’s map, run
round the sides of Glen Glaster, but that it suddenly stops
short in Glen Roy, just above the entrance to that smaller
tributary glen.
From this we conclude, that the barrier which blocked up
Glen Roy, so as to occasion the formation of its highest
shelf, must have disconnected it from Glen Glaster, and thus
forced it to discharge its surplus water into the valley of the
Spey by the summit-level at its head, instead of permitting
it to discharge by the lower summit-level at the head of Glen
Glaster, and down by the ancient river-channel into Glen
Spean,—a course which must have been followed by any
water occupying Glen Glaster, or communicating with it
uninterruptedly.
Now, to explain the formation of the highest shelf of Glen
Roy, Agassiz supposed one glacier, in the lower part of Glen
Spean, to have extended across from Ben Nevis to Moel
Dhu; and another, farther up that glen, to have issued from
the valley of Loch Treig ; the two being sufficiently high and
extensive to maintain the water between them, and, of course,
also the water in Glen Roy, at the level of the shelf under
consideration. In confirmation of this supposition, he stated
that the shelf is marked on the south side of Glen Spean, be-
tween the sites of the two supposed glaciers. Were the sup-
54 Mr Thomson on the Parallel Roads of Lochaber.
position true, the shelf should certainly be marked in that
situation, and also round Glen Glaster; but, according to Mr
Milne, it is to be found in neither of these places. The middle
shelf of Glen Roy, according to Agassiz, should also occur in
Glen Spean, between the two supposed glaciers; but Mr
Milne asserts that, in fact, it does not. Thus, then, the gla-
ciers supposed by Agassiz will not satisfy the conditions of
the question ; nor will any other system of blockage do so,
except one, according to which Glen Glaster would, for a cer-
tain period, have been separated from Glen Roy.
We are, therefore, if we proceed on the supposition of the
agency of glaciers, led to the conclusion, that the one which
stopped up the mouth of Glen Roy to form its highest shelf,
must have extended up that glen beyond the mouth of Glen
Glaster. It must also have blocked up Glen Collarig nearly
to the place named the Gap. Then, to explain the formation
of the middle shelf, it is only necessary to suppose that the
glacier retired a little, so as to connect Glen Glaster with
Glen Roy. The water in the latter would immediately begin
to discharge itself by the ancient river-course before men-
tioned, and its surface would thus be lowered to the level of
the middle shelf. Lastly, the lowermost shelf of all would
be formed when the glacier retired to near the mouth of Glen
Spean.
Mr Milne, however, asserts that, on account of the character
of the mouth of Glen Roy, in regard to levels, direction, and
distance from Ben Nevis, such a glacier as I have described
could not have existed ; but there does not appear to me to
be any real difficulty in the supposition.
The following considerations will, I think, tend to render
this clear. Of all climates capable of generating glaciers,
there are two extremes which must produce two correspond-
ing extremes in the mode of distribution of the ice on the
surface of the earth. The one of these extremes of cli-
mate may be instanced as occurring in Switzerland, and the
other in the Antarctic Continent recently discovered by Sir
James Clarke Ross. In Switzerland the mean temperature of
the comparatively low and flat land is so much above the
freezing point, that the ice no sooner descends from the
Mr Thomson on the Parallel Roads of Lochaber. 55
mountains than it melts away; and it is thus usually pre-
vented from spreading to any considerable extent over the
plains. In the Antarctic Continent, on the contrary, the
mean temperature is nowhere so high as the freezing point.
The ice, therefore, which descends from the hills, unites itself
with that which is deposited from the atmosphere on the
plains ; and the whole becomes consolidated into one coniti-
nuous mass, of immense depth, which glides gradually on-
ward towards the ocean. The portions which are protruded
out to sea break off, and are floated away as icebergs; the
remainder being left, presenting to the sea a perpendicular
face which rises, in insurmountable cliffs, to the height of
from 150 to 200 feet above the water, and extends below the
water to the depth of perhaps 1000 feet.
Now, a climate somewhere intermediate between these ex-
tremes appears to be that which would be requisite to form
the shelves in the glens of Lochaber. The climate of Swit-
zerland would be too warm to admit of a sufficient horizontal
extension of the glaciers ; that of the Antarctic Continent
too cold to allow the lakes to remain unfrozen. If the climate
of Scotland were again to become such that the mean tem-
perature of Glen Spean would be not much above the freezing
point, there seems to be every reason to believe that that glen
would again be nearly filled with an enormous mass of ice ;
while its upper parts, and also Glen Roy, would be occupied
by lakes, which would once more beat upon the ancient and
long-deserted beaches,—that the rivers would resume their
former channels, flowing out of the lakes by the summit-
levels between the glens,—and that the ancient aspect of the
country would, in all respects, be again restored.
It will perhaps be objected, that in imagining the ice to
make its way into Glen Roy, we are supposing it to flow up
hill. A semifluid mass, however, so long as its upper surface
slopes downwards, cannot be regarded as flowing up hill, no
matter what may be the form of the bottom on which it rests.
If a slightly-inclined trough or channel have an opening made
in one side, at the middle of its length, and if a stream of
thick mud be kept flowing into it by this opening, the mud
will not all turn suddenly round towards the lower end of the
56 Mr Thomson on the Parallel Roads of Lochaber.
channel, but a portion of it will flow in the opposite direction,
apparently up hill, till its surface comes to meet the bottom
of the channel at a level little, if at all, below the surface of
the mud at the side entrance.
In confirmation of the views just brought forward, regard-
ing the possible horizontal extension of the glaciers, 1 may
refer to the evidence given by Professor Forbes, in his “ Tra-
vels in the Alps” (page 50), of immense erratic blocks having
been conveyed by glaciers from the main chain of the Alps
across all the inequalities of the great plain of Switzerland,
and deposited high on the hills round the Lake of Neufchatel ;
the total distance travelled over being 60 or 70 miles, and
the total declivity due to their descent being certainly not
more than 1° 8’, and probably not half so much.
Glen Gluoy, in regard to its blockage, seems to have been
quite independent of all the other glens to which I have as
yet alluded. A glacier occupying the present site of Loch
Lochy, and receiving supplies from the various neighbouring
mountains, would appear to afford a sufficient explanation of
the phenomena observed in this glen. Mr Milne has, how-
ever, discovered in it a shelf which is lower than the one pre-
viously known, and which does not appear to be in connection
with any summit-level. If this be the case, we may suppose
that, while the lake was at the level of this second shelf, its
discharge took place by the present mouth of the glen, through
an elevated channel in the moraine of the glacier. The lake
would therefore have resembled almost exactly the Lac de
Combal and the Matmark See, described and figured in the
work by Professor Forbes to which I have already referred.
(Pp. 193 and 345.)
There is, however, a circumstance connected with this shelf
which seems to me to involve some difficulty. As represented
by Mr Milne, its terminations, on both sides of the glen, are
farther from the mouth of the glen than those of the shelf
above. In fact, the upper shelf is shewn round the sides of
Glen Fintec, while the lower shelf is made to stop short with-
out reaching the entrance to that glen. Should this repre-
sentation be really correct, it would appear to involve the
supposition, that the glacier, when at the lower level, pene-
Mr Thomson on the Parallel Roads of Lochaber. 57
trated farther into Glen Gluoy than it did when at the higher
level. Now the question arises,—lIs it likely that this could
have been the case? Perhaps light may be thrown on the
subject by some curious circumstances connected with the
Lac de Combal. The glacier which occasions the damming
up of this lake has actually retired a considerable way down
the glen in which the lake is situated, since the deposition of
that part of its moraine which now retains the water ; and
yet the surface of the glacier is some hundreds of feet higher
than that of the lake. Besides this, the glacier, at a point
farther from the head of the glen, threatens to overwhelm
with its moraine the channel of the river by which the super-
fluous water of the lake is at present discharged. How immi-
nent the prospect of this occurrence really is, may be judged
from the fact, that it is necessary annually to remove the
debris thrown down by the glacier on the road which, toge-
ther with the river, winds through the bottom of a deep
ravine, enclosed on the one side by the moraine of the glacier, ,
and on the other by the continuation of the hill which forms
a side of the glen containing the lake. Should the glacier
force itself even a very little farther in this direction, the
surface of the lake would not only be raised above its present
level, but its horizontal extension towards the lower part of
the glen would be increased. The beach of the lake at pre-
sent existing, together with that of the new one thus formed,
~ would therefore exhibit exactly the peculiarities which, ac-
cording to the representation of Mr Milne, appear to exist in
the two shelves of Glen Gluoy. This fact is enough to make
the difficulty appear to be not insuperable. The simplest
view, however, to take of the subject may, perhaps, be to
suppose that the glacier which occasioned the formation of
the higher of the Glen Gluoy shelves, had at some period
protruded a terminal moraine as far up the glen as the
terminations of the lower shelf; that on the final retiring
of the glacier this old moraine served as a barrier to dam
up the water to the level of the lower shelf, and that it
has been subsequently washed away by the river flowing
over it.
[have thought it right to point out the foregoing difficulty
58 Mr Thomson on the Parallel Roads of Lochaber.
for the consideration of those who may have it their power
to gain farther information on the subject. Should any mu-
tual action of a glacier and its moraine have occasioned the
peculiarity in question, we might expect to find some re-
mains of the moraine between the terminations of the upper
and those of the lower shelf. It may here be remarked, that
there is not the same difficulty in accounting for the removal
of this moraine, as for that of the barriers supposed by Mr
Milne to have existed at the mouths of the other glens. For,
in this instance, the water from the lake of Glen Gluoy must
have discharged itself over the top of the moraine; while, in
the case of the other glens, it certainly flowed out by the sum-
mit-levels between the glens ; and would, therefore, have no
power of cutting away the barriers.
There is, in the Lochaber district, still another glen, con-
taining a shelf, which was discovered by Mr Darwin, and de-
scribed by him in the Philosophical Transactions of the Royal
Society of London for 1839. This glen is situated near Kil-
finnan, at the north-eastern extremity of Loch Lochy. The
shelf in it is stated by Mr Darwin to be in every respect as
characteristic as any shelf in Glen Roy. He believes it to be
perfectly horizontal ; and, in connection with it, he discovered
a water-shed, similar in its nature to those which have been
already mentioned. Now, as this author remarks, in regard
to any explanation by means of earthy barriers, “the dis-
covery of the shelf at Kilfinnin increases every difficulty mani-
fold.” Every additional glen containing a shelf, in fact, re-
quires us to assume the deposition of an additional barrier,
and the subsequent removal of this by causes which have left
the shelves undisturbed. To admit, at the mouth of even a
single glen, of a barrier of such a peculiar nature as would
enable it to stand for a long time, but at last to be swept
away, although no river flowed over it, seems difficult enough ;
but to imagine that numerous glens should chance to be
‘placed in such peculiar circumstances, appears to be quite
unnatural ; no sufficient and generally-acting cause being as-
signed for the repetition of the supposed phenomenon. On
the other hand, the existence of the shelf in question is ex-
actly what should have been expected, according to the gla-
»
Mr Thomson on the Parallel Roads of Lochaber. 59
cial theory I have maintained. The same mass of ice occu-
pying Loch Lochy, which I have supposed to have been in-
strumental in forming the shelf in Glen Gluoy, would, to all
appearance necessarily, have blocked up also the glen at Kil-
finnan, and thus have produced the shelf which is really
found to exist round its sides, on a level with the water-shed
at its top. Mr Milne himself mentions the occurrence, in
various parts of the Highlands, of other glens containing
shelves, none of which have, however, been so carefully in-
vestigated as those we have been considering. According
to what I have already said, this would appear to add to the
difficulties of the explanation by means of earthy barriers,
and to confirm the one I have given, depending on the agency
of aclimate such as would cover with a thick bed of ice almost
the whole surface of the land in the neighbourhood of high
mountains.
It will be unnecessary for me to enter at length into a dis-
cussion of the diluvial-theory of the parallel roads, given by
Sir George Mackenzie, as, after a full consideration of it, it
does not seem to me to be capable of explaining the observed
facts. I may, however, mention some of the leading objec-
tions which I would bring against it. During the sinking
of the supposed wave, on the arrival of its surface at each
successive summit-level, there would be no sudden check to
the flow of the water through the glens, nor even to the rate
of depression of the general surface of the wave; but even
if some material alteration in the flow of the water were to
occur at those particular occasions, there seems to be no
reason to suppose that these vast shelves would be the result.
No attempt, besides, is made according to this theory, to shew
why the various shelves should be expected to stop short at
the particular places where, by observation, they are found
to do so.
An objection which has been urged by Mr Lyell against
the glacial theory of the parallel roads must not be left un-
noticed. He thinks there are proofs to be met with in va-
rious parts of Scotland of great changes having occurred in
the relative levels of the sea and land ; and he supposes that
such changes would have destroyed the horizontality which
&
60 Mr Thomson on the Parallel Roads of Lochaber. :
is found to characterise the terraces. Now, there is probably
no doubt that important changes in the elevation of the land
have occurred since the commencement of the glacial period,
but I do not think that any proof can be given of their oc-
currence since its ¢ermination. In other words, I think no
proof can be adduced, that, ever since the last great disturb-
ance of the land, the climate has been so warm as to pre-
clude the supposition of the existence of glaciers round Ben
Nevis. Could this, however, be proved, still it does not ap-
pear to me that it would invalidate the glacial theory of the
terraces. It is easy to conceive that the whole of Scotland
might participate in a general elevation or depression ; each
part remaining unaltered in regard to inclination to the hori-
zon; and even were we to suppose the south of Scotland to have
risen 30 feet, while the north remained stationary, and the
intervening parts moved in proportion to their distances from
the north, the utmost deviation from horizontality which
would thus be produced in the terraces would not exceed a
foot of difference between the levels of the northern and
southern extremities of any one of them; an amount which
would be quite imperceptible by any mode of measurement
which could be applied on surfaces so uneven.
In conclusion, I may remark, that, in calling in the aid of
glaciers towards the explanation of the Parallel Roads, no
gratuitous or unsupported assumption is made. So many
yarious and independent proofs of the existence of a glacial
climate in these countries, during some of the most recent
geological periods, have been accumulated, especially within
the last few years, that we may now regard it as an esta-
blished fact, and use it like a stepping-stone to assist us in
farther investigations. In addition to other proofs of a cold
climate derived from organic remains, and from effects which
appear to have been produced by icebergs floating at sea,
indications of glaciers, in some instances of the most unequi-
vocal character, are to be met with in various mountainous
parts of Great Britain and Ireland. Such appearances, more
or less satisfactory, have been pointed out by various authors,
of whom it may be sufficient to mention Buckland, Lyell,
Bowman, Agassiz, Maclaren, and Forbes. In the island of
Mr Thomson on the Parallel Roads of Lochaber. 61
Skye, in particular, among the Cuchullin Hills, which have
been lately explored by the last-mentioned author, Professor
Forbes, there are to be seen more striking and indisputable
traces of glaciers than in any other locality which has, as yet,
been examined. This is ina great degree to be attributed
to the durable nature of the hypersthene rocks of which those
hills are composed ; a property which has caused their sur-
faces to retain not only the general forms, but aiso the most
minute markings produced by the glaciers; and which, at
the same time, has prevented these from being concealed
under a coating of decayed materials. The face of the country
seems, in fact, to have retained, almost absolutely unaltered,
all the appearances which it presented on the retiring of the
ice.
In the Lochaber district, among other indications of the
action of glaciers, Agassiz has ‘pointed out one which is in-
teresting in itself, and more so when taken in connection
with the foregoing. At the mouth of Loch Treig, the rock
consists of gneiss, intersected by veins of quartz. The quartz
everywhere projects two or three inches above the gneiss, its
upper surface being polished and striated, exactly as is the
case with quartz veins exposed to the action of glaciers at the
‘present day. It is clear that the gneiss and the quartz had
originally been planed down to one even surface; and that
the gneiss, not being perfectly durable, has since decayed
away, and thus left the quartz veins standing in relief.
It would be out of place for me here to enter at greater
length into the question as to the former prevalence of gla-
ciers, or of a glacial climate. For farther details, I must
refer to the authors who have discussed the subject, particu-
larly to those I have already mentioned.
On Carbonic Acid as a solvent in the process of Vegetation.
By Joun Davy, M.D., F.R.S., Lond. & Ed., Inspector-Ge-
neral of Army Hospitals. Communicated by the Author.
The importance of carbonic acid in the process of vegeta-
tion, as the principal source of the carbon of plants, is now
62 Dr Davy on Carbonic Acid
generally admitted. But, whilst the effect of its decompo-
sition, under the influence of light, has been carefully stu-
died, comparatively little or no attention, to the best of my
knowledge, has been paid to the solvent power of this acid
in the physiology of vegetables.
When we examine the ashes of plants, we find in the ma-
jority of them, besides certain salts soluble in water, certain
other compounds of little or no solubility in this fluid, such
as carbonate of lime, phosphate of lime, and silica; and the
two latter, in many of the grasses, especially in tropical
Species, in proportions exciting our surprise. That these
inorganic elements, as they are commonly called, are derived
. from the soil, can hardly be doubted, judging from well-esta-
blished facts ; but, it is a question of some interest how they
are derived, what the menstruum is by which they are con-
veyed and distributed, and whether the acid mentioned—
the carbonic acid—is mainly concerned in the function.
To endeavour to answer this question, at least in part, I
have instituted some experiments, which I shall now de-
seribe, with their results. The subjects of the first trials I
made were phosphate of lime, silica, and alumine. Portions
of these (all with the exception of the sulphate of lime) were
used in a moist state, freshly precipitated, after having been
well washed on a filter. They were introduced into bottles,
such as are used for holding soda-water, and were filled with
water strongly impregnated with carbonic acid gas by means
of the apparatus commonly employed in the manufacture of
of soda-water, and were corked and wired in the usual man-_
ner. The degree of the compression of the gas was not
ascertained: that it was considerable was evident from the
explosive manner in which the corks were expelled on re-
moving the binding wire for the purpose of examining the
effects. In each instance, on the removal of the cork, the
water was filtered as soon as possible, using three or four
filters; and, generally, | may remark, there was no appear-
ance of any turbidness or precipitation on the escape of the
highly-compressed gas, seeming to indicate, as might have
been expected, that no solvent power was exercised by the
compressed air. In each instance the filtered fluid was
.
as a solvent in the process of Vegetation. 63
carefully examined, subjected to such trials as were requi-
site to determine whether and to what extent the substance
introduced had been acted on by the acid. I shall briefly
notice the results individually.
Phosphate of Lime.—After having been kept eleven days,
the carbonic acid water, in which a portion of this compound
had been introduced, was examined. The water, immedi-
ately after filtration, was clear. The whole was divided into
two portions ; to one ammonia was added, the other was left
exposed to the air. The volatile alkali instantly rendered
the water turbid; six cubic inches of the water yielded a
precipitate, which, collected and weighed, after having been
dried and heated nearly to redness, was found equal to -64
of a grain. It had the properties of phosphate of lime. The
other portion exposed to the air, about 8:5 cubic inches, ex-
amined after two hours, was found to have on its surface a
fine continuous pellicle, not unlike that which forms on lime-
water similarly exposed. Examined again after fourteen
hours, the pellicle had become more conspicuous, and a de-
position was observable on the inside of the glass vessel,
diminishing downwards. The pellicle examined under the
microscope with a high power (one-eighth of an inch focal
distance) appeared finely granular, portions of it with well-
defined broken edges, other portions with a delicate arbo-
rescent outline. The pellicle formed on the surface, and the
deposit on the sides of the vessél collected on a filter, after
thirty-eight hours’ exposure, and thoroughly dried, weighed
‘7 of a grain. Still the water held carbonic acid and phos-
phate of lime in solution, for, on addition of ammonia to the
filtered fluid, it was rendered turbid, and yielded °5 of a grain
more of phosphate of lime. These results appear to shew
that 20,000 parts by weight of water saturated with carbonic
acid gas are capable of dissolving 1 part by weight of phos-
phate of lime. The readiness with which phosphate of lime
is dissolved by means of carbonic acid is most easily shewn
by adding a portion of freshly-precipitated phosphate, well
washed, to water merely saturated with carbonic acid gas
by agitation. In a few minutes, if the portion be small, it
will disappear, and will be precipitated distinctly by the ad-
.
64 Dr Davy on Carbonate Acid
dition of ammonia. I may mention in this place, in farther
illustration of the solvent power of carbonic acid over phos-
phate of lime, an experiment that is rather paradoxical.
If to a solution of phosphate of lime in distilled vinegar
carbonate of lime in fine powder be added, there is an instant
and strong effervescence, and phosphate of lime is found to
be precipitated ; but if calc-spar, in small pieces, be substi-
tuted for the powder, comparatively little gas is given off,
and very slowly ; the solution, in brief, becomes saturated with
carbonic acid, and though an acetate of lime is formed, no
phosphate of lime is thrown down, it being kept in solution
by the carbonic acid, as is proved by heating the solution,
when, on the expulsion of the gas, the phosphate of lime is
precipitated.
Gypsum.—Some of this compound in powder, not of absolute
purity, from a parcel imported for use as a manure, was sub-
jected to the action of carbonic acid in water for twelve days.
The results of the trial were negative. On the addition of
ammonia to the filtered water, there was no precipitation of
sulphate of lime; nor, on exposure to the atmosphere of an-
other portion of the water, was there any film or pellicle of
the sulphate observable on the surface, after the greater part
of the gas had escaped, or any deposition on the inside of
the glass vessel; thus indicating that water impregnated
with carbonic acid gas had not its power of dissolving gyp-
sum increased thereby. And a few experiments which I
have made with other acids on this compound, as the sul-
phuric, muriatic, and acetic acids diluted, have given a like
result, viz., that these acids are not solvents of sulphate of
lime.
Alumine.—The portion of this earth, subjected to the ac-
tion of the carbonic acid water, had been obtained from a
solution of alum by the addition of ammonia, and conse-
quently retained a minute proportion of sulphuric acid, even
after having been well washed. On examination, after seven
days, the results were entirely negative ; ammonia, added to
the water the instant it had been filtered, did not occasion
the slightest turbidness; no pellicle appeared on another
portion as the gas escaped on the exposure to the air; nor
as a solvent in the process of Vegetation. 65
could any trace of alumine be detected in the minute residue
obtained by evaporating this portion to dryness.
Silica.—A portion of gelatinous silica obtained from liquor
silicum, by means of an acid, was exposed to the action of
the aérated water eight days. The filtered fluid was not
distinctly precipitated by ammonia; nor did a pellicle form
on a portion of it exposed to the atmosphere ; but, from both
portions,—that to which ammonia had been added, and that
to which no addition had been made, a minute quantity of
silica was obtained by evaporation to dryness. It adhered
to the platina capsule, forming delicate circles; the deposit
was opaque and white; was not dissolved by nitric acid:
under the microscope it had the appearance of small thin
plates, transparent, without any regularity of form, as to
outline. From six cubic inches of aérated water, I infer
that about -01 of a grain of silica was deposited. In another
experiment, in which some silica that had been obtained from
a mineral water in fine powder, had been exposed, after hav-
ing been dried, to the action of the water containing carbonic
acid gas compressed, for nineteen days, the results obtained
were very similar to the preceding. In this instance, there
was a slight appearance of turbidness produced on the addi-
tion of ammonia to the filtered water, and a very slight de-
position on the inside of the glass vessel, in which a portion
of the water was exposed to the atmosphere, and that of
matter not dissolved by an acid ; and, farther, the proportion
of white matter having the character of silica, obtained by
the evaporation of the water, was greater than in the first
instance,—from 6 cubic inches -06 of a grain was procured.
In a third experiment, in which a white powder, consisting
chiefly of the silicious skeletons of infusoria, had been exposed
to the action of water saturated with carbonic acid, without
condensation, for fifteen days, a similar result was witnessed
on evaporation, viz., a minute residue of silica.
Besides the foregoing, I have made many other trials of
the action of water impregnated with carbonic acid gas, bot h
compressed and without compression, the results of which
have been in accordance with the preceding. I shall briefly
VOL. XLY. NO. LXXXIX.—JULY 1848. E
66 Dr Davy on Carbonic Acid
notice such of them as are likely to be useful in connection
with vegetable physiology.
A portion of calcareous marl in fine powder, acted on for
fourteen days by water containing carbonic acid gas con-
densed, yielded, after filtration, on exposure to the air and
evaporation to dryness, some carbonate of lime, a little car-
bonate of magnesia and phosphate of lime, and a trace of
silica, and a minute portion of carbonate of potash.
In a similar experiment, continued for the same time, on a
portion of the ashes of the sugar-cane, the carbonic acid
water yielded a considerable portion of phosphate of lime,
and of carbonate of potash, and a small proportion of carbo-
nate of magnesia, with a little silica, and a trace of carbo-
nate of lime,—results in harmony with the composition of
this ash, as ascertained by analysis.
A portion of a subsoil from the island of Trinidad was
similarly acted on for eighteen days. The aérated water then
yielded a little carbonate of lime, a very little carbonate of
magnesia and phosphate of lime, and a trace of silica and of
carbonate of soda.
A mixture of two grains of bi-carbonate of potash and of
four grains of a chalk-like matter, of which there are exten-
sive deposits in Barbadoes, consisting chiefly of the silicious
skeletons of infusoria, was acted on by water containing car-
bonie acid gas compressed, for eleven days. This water,
then filtered and evaporated, yielded, besides the alkaline
salt, a trace of carbonate of lime and magnesia, and of phos-
phate of lime and silica; and it may be worthy of remark,
that the silica obtained in this instance, notwithstanding the
presence of a large proportion of the vegetable alkali, was
not more in quantity than when no alkali had been intro-
duced.
A mixture of four grains of dried phosphate of lime, and
of the same quantity of carbonate of lime, and of the chalk-
like matter above mentioned, all in the state of fine powder,
was similarly acted on during fifteen days. This examined,
the aérated water was found to yield some carbonate of lime,
a minute portion of phosphate of lime and of carbonate of
magnesia, and a trace of silica. Silica was detected both in
as a solvent in the process of Vegetation. 67
the precipitate obtained by adding ammonia to the filtered
water, and also by evaporating to dryness the same water
after the addition of ammonia and filtration.
These latter results appear to shew, that water impreg-
nated with carbonic acid has the power of dissolving, at the
same time, several compounds, as carbonate of lime, carbo-
nate of magnesia, phosphate of lime and silica, besides what
water alone is capable of taking up.
The application of these results to the physiology of vege-
table growth appears to be pretty obvious, and, in some par-
ticulars, in admirable harmony with previously ascertained
facts. For instance, how admirable it is, that the acid from
which vegetables derive their carbonaceous elements, chiefly
by the action of light and oxygen, is restored to the atmo-
sphere by its decomposition, should, in passing from the soil,
be the bearer of so many elements derived from the soil, and
insoluble in water alone, to be deposited, it may be taken for
granted, where required, partly owing to the decomposition
of the acid, when the process of vegetation is most active
under the influence of light, and partly owing to evapora-
tion under the influence of heat, and of other causes promot-
ing it.
Perhaps the careful study of the manner and the influ-
enees under which the several substances admitting of solu-
tion in water, and in water holding carbonic acid in solution,
are deposited, may throw some light on the composition of
plants, as regards their inorganic elements. For instanee,
as sulphate of lime does not appear to have its solubility in-
creased by the addition of carbonic acid to water, it does not
seem incongruous that it should seldom be found excepting
in minute quantities in vegetables. As alumine, insoluble in
water, does not appear to be rendered soluble by the same
acid, the remark just made is @ fortiori applicable to it, as a
constituent of plants ; indeed, it seems questionable, that this
earth, which performs so important a part in the soil, physi-
eally considered, is ever abstracted from the soil to enter
into the composition of any vegetable. Phosphate of lime,
judging from the experiments I have made, appears to part
with its solvent carbonic acid on exposure to the atmosphere
68 Dr Davy on Carbonic Acid
more readily than carbonate of lime does or carbonate of
magnesia. May not this greater facility be concerned in
many instances, especially of the grains of the cerealia, in
oecasioning the preponderance of the one compound greatly
over the other,—the one so much more important than the
other in these grains as articles of food? Farther, as silica
appears, after having been dissolved by means of carbonic
acid, not to be deposited distinctly on the escape of the acid,
but rather on the evaporation of the aqueous part, may not
this circumstance aid to explain the deposition of silica which
is observable on the ripening of the cerealia and grasses at
a period when they are losing their humidity, and becoming
dry, and strong, and resisting ?
Some of the results I have described bear, I believe, on
other points of inquiry,—for instance, on soils, and even the
strata on which they rest, and mineral waters. The effects
of the solvent power of rain containing carbonic acid on cer-
tain ingredients of the soils, after what has been adduced, is
obvious. When new deposits are formed, connected with
the escape of carbonic acid gas, whether entirely, as in the
production of stalactitical limestone, or in part, as in the
formation of freestone with a calcareous cement, should we
not expect to meet, mixed with the deposited carbonate of
lime, some carbonate of magnesia and phosphate of lime?
In the few instances in which I have sought for these latter
compounds, in situations in which it seemed reasonable to
expect them in admixture with carbonate of lime, I have not
failed to find them ; for example, in stalactites now forming,
pendent from cavernous roofs, in the rock of which are traces
of phosphate of lime and of carbonate of magnesia.
If, as the results of the experiments described seem to
shew, silica is capable of being dissolved by water impreg-
nated with carbonic acid gas, should it not follow that silica
ought to be met with in mineral waters whenever abounding
in this gas, provided the source or the strata through which
they pass contain silica in a favourable state of minute divi-
sion to be acted on? And, as far as my experience extends,
this-is the case. Many instances might be adduced, in which
the proportion of silica in mineral waters seems to bear very
as a solvent in the Process of Vegetation. 69
little relation to the proportion of alkali present, and more
to the degree of temperature of the spring, and the quantity
of carbonic acid which it yields. These are remarks which
I studiously make very briefly, and chiefly with the hope of
drawing attention to the subject in its most interesting rela-
tions, and of leading, under more favourable circumstances,
to farther and more precise inquiry.
I have observed at the commencement, that little or no at-
tention has hitherto been paid to carbonic acid as a solvent
of the inorganic elements of plants. Such is my belief in
relation to their growth; but I may be mistaken. Since [
entered on the inquiry, referring to the work of Professor
Johnston on Agricultural Chemistry, I find in a note that he
describes an experiment made by him, proving that water,
holding in solution carbonic acid, is a solvent of phosphate of
lime, and as such, must tend constantly to abstract it from
the soil.* I may likewise have been anticipated in some of
the other results I have brought forward, and in their appli-
cations.
BaRBADOES, Feb. 15, 1847.
Geological Researches in the Neighbourhood of Chamounix, in
Savoy. By AuLPHonso Favre, Professor of Geology to
the Academy of Geneva. (With a Plate.) Communicated
by the Author.
_ The Col de Balme is placed in an excellent position to
serve as general quarters to a geologist, and the formations
in the neighbourhood deserve to be examined. Near the Col
is a peak, named the Croix-de-fer (2373 metres above the sea).
from which is obtained one of the finest views among the Alps.
We observe from it that great chain of mountains which ex-
tends from the Dent du Midi, near St Maurice, as far as Fiz.
Itis rich in elevated peaks, and richer still in names; for the
peasants and huntsmen always give at least two names to
each peak, according to the side from which they view it.
The Col de Balme is 2222 metres above the level of the
* Lectures on Agricultural Chemistry and Geology, note, p. 290. Edin.
1844.
70 Professor Favre’s Geological Researches
sea, according to a mean of twelve of my barometrical obser-
vations. It is situate exactly on the boundary of the crys-
talline slates and the jurassic formation. The junction of
these two formations can, therefore, be easily determined.
In order to determine the exact limit of the protogine and
crystalline slates, it was necessary for me to make a long
expedition on the side of the glacier of Trient. Proceeding
on my search, and having no other indication than the direc-
tion of the beds, I wandered a little from my route; and it
was not till I had crossed five glaciers that I arrived at it.
But I was rewarded for my trouble, by finding near the line
of contact five banks or veins of granite, the largest of which
was 5 or 6 metres in thickness. They are embedded in the
crystalline slate, as well as a vein of Potstone, quite ana-
logous to that now dug at Montanvert de Chamounix. This
latter is likewise near the junction of the crystalline slates
and protogines. De Saussure has described (Voyages, § 661)
five banks of granite situate near the Chalets of Blaitiére,
not far from the limit of the crystalline slates and proto-
gines. Now, there are about 15 kilometres between Blai-
tiére and the locality where I discovered the granite veins
near the glacier of Trient. So that we may conclude, that
the Poistone and granite veins are placed as bands parallel
to the line of contact of the crystalline slates and the protogine ;
and that throughout all this line, the same phenomena present
the same appearance, at least on the north-west aspect of the
chain of Mont Blane. I can also affirm, that, on the same
declivity, there exist parallel bands of serpentine or Pot-
stone; and I have other proofs of the parallelism with which
these rocks are disseminated in the crystalline slates. These
I have reserved for a work in which they will be described
with more details than I can give here.
These proofs are the result of a journey on foot to the
Aiguille du Midi, in front of the Grand-Mulets, which the
badness of the weather compelled me to make on two differ-
ent occasions, and in which I ascended to the height of 2757
metres—that is to say, about 100 metres above the point
which Saussure reached with much difficulty. (§ 660.)
Iuse the words crystalline slates in preference to any
in the Neighbourhood of Chamounix, in Savoy. 71
other ; because, up to the present. moment, I have been un-
able fully to satisfy myself whether these rocks are gneiss or
taleose rocks. The component part, consisting of leaflets,
often appear harder than talc, and less elastic than mica.
It seems intermediate between these two minerals. I be-
lieve that there is often true talc associated with the fel-
spar, and even that this rock plays as important a part in
the protoginous chain of Mont Blanc, as is done by the gneiss
in the granite chains. This foliated rock, which is essen-
tially composed of felspar and tale or chlorite, has been
named felspathic-steaschist by M. Omalius De Halloy ;* but
it is so widely diffused among the Pennine Alps as to de-
serve a special name; and that of Dolérine, proposed by
M. Jurine,+ appears to be the only one that can be adopted
to designate it.
Near the glacier of Trient, I found large aiguilles entirely
formed of eclogite.
During my stay at the Col de Balme, I often examined the
formation known by the name of Poudingue de Valorsine,
especially in the locality named Ceblanes, rendered classical
by the observations of Saussure (Voyages, ch. xx.). These
pudding-stones, in which I have found neither true granite
nor limestone, constitute, along with sandstone and argilla-
ceous slates, the anthraciferous formation of the Alps. By
this name I do not pretend to decide its age, that being still
problematical; nor to assimilate this formation to the an-
thraciferous formation of Belgium or the Ardennes. I merely
mean, that it contains the anthracites of the Alps, which, as
is known, are associated, according to M. Brongniart, with
plants of the coal formation.{ Here the formation is inferior
to the belemnite limestone; and these two formations pre-
sent a geological passage from the one to the other—that is
to say, there is an alternation of the rocks of the two forma-
tions near the line of contact.
I have had occasion to verify, in this singular formation,
* Des Roches considérées Mineralogiquement, 1841, p. 70.
t Journal des Mines, 1806, t. xix., p. 374,
t Annales des Scien. Nat., t. xiv., p. 127.
72 Professor Favre’s Geological Researches
the observations which MM. Escher and Studer* have made
on the pebbles of Nagelflue, that is, I have seen some of the
rolled pebbles forming part of it, which had made an impres-
sion on each other ; or, in other words, the convex part of one
pebble was embedded in the concave part of another pebble.
This fact, however extraordinary it may seem, is less sur-
prising in the pudding-stones of Valorsine than in the Nagel-
flue, for this pudding-stone appears to have been partly re-
melted since its formation. As a proof of this, we may refer
to the pebbles which are closely soldered, at a part of their
circumference, to the cement which encases them, and the in-
sensible way in which they and this cement run into one
another. If we admit this kind of semifusion, we can readily
explain this singular phenomenon of impressed pebbles, for
we can understand how rolled pebbles formed of fusible mat-
ters could receive the impression of substances less fusible.
Near Ceblanes we find the rocks of St Jean, in which there
is a fissure where ice is formed, even in summer, by the effect
of a very rapid current of air. But I could not examine this
natural glacier in a somewhat warm temperature, cold and
bad weather having followed me during my excursions.
After traversing for some days the valley of Chamounix, I
was very much struck, as MM. De Saussure, Forbes, and
Necker had been, with the singular position of the masses of
limestone observed here and there on the sides and in the
bottom of the valley. We perceive that the chain of the
Brévent and the Aiguilles Rouges is nearly parallel to that
of Mont Blane. These two great masses of crystalline rocks
are separated by the valley of Chamounix, in which stratified
limestones occur. It is a very remarkable position for lime-
stones to be thus enclosed between two masses of crystalline
rocks so extensive and so near each other, the more so as
the beds of limestone are very nearly vertical at the base of
the Aiguilles Rouges, and dip under the chain of Mont Blane
with a great inclination. They thus constitute the structure
* Actes de la Soc. Helvetique des Sci. Nat. 1837, p. 28; 1839, p. 47 ; Annal.
des Soc. Geologiques, tome i., p. 228; Comptes Rendus de l’Acad. des Se. de
Paris, 21 Fevrier 1848, p. 251,
in the Neighbourhood of Chamounix, in Savoy. 73
which has been named fan-shaped, which is not unimportant
in the geology of the Alps. These limestones have been re-
ferred to the lias formation ; I myself this year found belem-
nites in three different localities; in Mont Lacha, near
Ouches ; near the side of Piget, at the foot of the Glacier des
Bois, and near the Chalets of Balme. It is annoying that the
imperfect preservation of these fossils does not admit of de-
termining them specifically.
Hitherto it has been impossible to distinguish the upper
from the lower part of these limestones, and from this there
has arisen much confusion in the mind of geologists as to the
structure of this portion of the Alps ; and many of them, glad
to be supported by the authority of Saussure, are accustomed
to say, with him, “ We may almost assure ourselves that
there is nothing so constant among the Alps as their variety.”
(Voyages, § 2301.)
During the many years that I have been in the habit of
visiting these mountains, I have been always convinced that
we might much more truthfully affirm that there is a great
regularity in this part of the Alps; that the enormous masses
that have been raised upwards are in no respect of an excep-
tional character, unless it be in consequence, perhaps, of
their size; and that they may be compared, for their regu-
larity, with those of the Jura, the forms of which have been
so distinctly described by M. Thurmann. It ought to be
thus ; for volcanic agency has operated in the same manner
at all times, and over all the surface of the globe.
It is with this opinion that I attached myself to the study
of the neighbourhood of Chamounix ; and although I have
not yet arrived at a definite and complete result, I hope to
be able, by adducing new observations, to point out the way
to an explanation of this structure, which has been regarded
as abnormal.
I at first endeavoured to discover which was the superior
and which the inferior portions of the sedimentary formations,
which, along with the transported formation, compose the
valley of Chamounix. I began by examining the junction of
the belemnitic limestones with the crystalline schists, at the
base of the chain of Mont Blanc, and I did this from Forclaz
74 Professor Favre's Geological Researches
de Martigny, as far as Mont de Lacha, near Ouches. This
junction is seen in a very great number of localities, among
others, on the right side of the glacier of Bois, on the road
leading to Chapeau, at a place called Bouchet. In this lo-
cality, the beds of which are nearly a prolongation of those of
the sides of Piget,* the fan-shaped structure is striking, the
beds inclined, as pointed out by M. Forbes,} about 30° south-
east; the crystalline slates appear to dip under the crystalline
rocks, and to rest on the limestones, whose beds present the
same inclination. At the boundary of the crystalline slates
and the limestone, we find the cellular magnesian limestone,
named Cargneule, and between the Cargneule and the erystal-
line schist is found a thin layer of a white or greenish sort of
kaolin. This arrangement is seen along the whole line of |
contact. I have also found it at the torrent of La Gria, at
the Col de Balme, &c., &e.
As in the regular order of formation, the anthraciferous
formation is placed below the jurassic formation, and since
we nowhere see this formation between the crystalline
slates and the limestone on this side of the chain, I have
thought that it is not the lower portion of the jurassic for-
mation which is found in contact with the crystalline schists.
This absence of the anthraciferous formation seems to ex-
clude the possibility of explaining the fan-shaped structure
by the overturning of the beds resulting from the force and
nature of the rising upwards of the crystallised rocks. I
know, however, that it is not thus throughout the whole cir-
cumference of the chain of Mont Blanc. In the Vale of
Ferret, for example, the jurassic limestones rest upon the
crystalline slates, and on the massive rocks. They ap-
pear to be in a normal position, and the fan-shaped structure
does not exist. This belief, therefore, as to the superposi-
tion of the crystalline slates on the upper part of the juras-
sic formation, needs to be confirmed. With this object I
examined the line of junction of the jurassic formation and
of the Brevent chain, in a locality frequently visited, named
* De Saussure, Voyages, § 709.
t Travels, p. 63 and 66.
—_
in the Neighbourhood of Chamounix, in Savoy. 75
the Rafords, in front of the hamlet of Pras. From the time
~ of Saussure (Voyages, § 710), as in the present day, lime-
stone is quarried here. This rock forms a scarcely strati-
fied mass, which rests on the base of the Aiguilles Rouges, be-
low La Croix de Flegére. Ascending above the quarry, in
order to examine the line of junction of the formation, 1
found beds of true slate placed between the limestone and
the rocks of crystallization. I recognised the slates as be-
longing to the anthraciferous formation. They are the pro-
longation of those found at the base of the Aiguilles Rouges,
above D’Argentiere, and of those which accompany the an-
thracite mines of Coupeau.
In tracing, as I have done, the geological map of this
_ country, we perceive that from the neighbourhood of the Col
de Balme as far as the village of Ouches, that is to say,
throughout the whole length of the Valley of Chamounix,
there exists, at the southern base of the chain of the Aiguilles
Rouges, a band of the anthraciferous formation, which rests
on this chain, and which has been subjected to great denuda-
tions. In many localities, these rocks contain numerous im-
pressions of plants, which are probably identical with the
plants of the coal formation, like those of the Tarentaise.
The slates of Rafords are in almost vertical beds, and co-
vered by the jurassic limestone. The rock immediately be-
low them is a crystalline slate containing some pebbles,
and which probably ought to be referred to the Valorsine
pudding-stone.
There is often great difficulty in distinguishing certain
parts of the Valorsine pudding-stone, which do not contain
rolled pebbles of true erystalline slates. I have seen a sin-
gular example above the Valorsine slates, which is covered
by a rock identical with a true crystalline slate, and yet it is
comprised in the formation of the pudding-stone of Valor-
sine.
This doubtful Rafords rock passes insensibly into a rock
which constitutes the greatest part of the Aiguilles Rouges,
a species of gneiss, the colour of which has given its name
to this chain.
It is this intimate connection of the crystalline schists with
76 Professor Favre’s Geological Researches
the anthraciferous rocks, and the frequently crystalline ap-
pearance of the latter, that has led M. Gras to refer the
greater part of the crystalline rocks of the Alps of Dauphiné
to the carboniferous period.* Oftener than once I have
asked myself whether the great masses of crystalline slates
placed between the protogines of the central chain of Mont
Blane and the limestones at the base of its northern aspect,
might not pertain to the anthraciferous formation ; but no-
thing in the numerous localities where I have examined them,
enables me to answer this question in the affirmative.
It appears to me, therefore, that it is the chain of the
Aiguilles Rouges which has determined the straight arrange-
ment of the sedimentary rocks in the Valley of Chamounix.
This opinion appeared to me at first rather extraordinary ;
for it was to annul, in some degree, the geognostic import-
ance of the enormous protoginous chain of Mont Blane. But
I am aware that on the other side of the chain of Brevent,
in the savage valley of the Diorza, all the beds are turned to
the south-east; that is to say, they rest on the chain of the
Aiguilles Rouges and of the Brevent.
The chain of Fiz, rendered celebrated by the description
which has been given of it by M. Brongniart,t forms a part
of the upper crest of this lip, produced by being raised up-
wards. Although this inclination has been hitherto attri-
buted to the influence of the central chain of the Alps, yet I
consider it as giving support to my view of the matter. But
it was necessary for me to find other proofs of geological im-
portance in the chain of the Aiguilles Rouges, and I resolved
to go and seek them on the two declivities of this chain, by
going along it from Servoz as far as Salantin, near St Mau-
rice, in the Valais.
Notwithstanding the badness of the weather, I was fortu-
nate enough to succeed in this expedition. I crossed places
so savage and so seldom explored, that, although not remote
from Chamounix, I could not find, among the excellent guides
* On the Geological Age of the Anthraciferous Beds of the Department of
the Isére. Annales des Mines, 1839, t. xvi., p. 409.
+ Description of the Neighbourhood of Paris.
in the Neighbourhood of Chamounix, in Savoy. tT
of that village, any one who was acquainted with them. But
I shall give only the observations which I made in my expe-
dition to the Aiguilles Rouges, properly so called, disregard-
ing, for the present, such as refer to the other portions of this
chain.
I had little expectation, m traversing these mountains, to
make any observations possessed of interest. They have
been described by Dr Berger ;* and his memoir not present-
ing any curious results, they have been abandoned by natu-
ralists. But the most remarkable observation relating to
this chain escaped M. Berger, and my visit to them was not
made in vain.
I selected the day on which Mr Smith ascended Mont
Blane, in order to ascend the Aiguilles Rouges. On the 11th
of August 1847, when he left Chamounix, in order to sleep at
the Grand-Mulets, I spent the night at Croix de Flégére
(1878 metres, the mean of four of my barometrical observa-
tions); and on the following day, while he was climbing
Mont Blane, I ascended the aiguille named Gliére (2855
metres by barometrical measurement), which is also called
Floria. But the true Floria is almost inaccessible, and the
guides, by a little deception, of which travellers are often
made the dupes, transfer the name from one of the aiguilles
to another. It thence follows that travellers are sometimes
flattered by having easily reached the summit of an inacces-
sible mountain.
I reached the top of Gliére some hours before Mr Smith
gained the summit of Mont Blanc. I watched with great in-
terest the progress of his little band, which, no doubt, was at
that moment the most elevated in the old world, and which
seemed about to be lost in these deserts of eternal snow. I
saw the details of their ascent through my telescope, their
arrival at the summit, and their descent. The weather was
remarkably calm and warm, which favoured both Mr Smith's
enterprise and my own.
From the aiguille on which I stood I had an admirable
view, not only on the central chain, but likewise on the chain
%* Journal de Phys. de Chémie, et d’Hist. Naturelle.
78 Professor Favre’s Geological Researches
of Fiz, Du Buet, &c., the high peaks of which formed a frame
to charming points of view among the most remote and low-
est mountains of Savoy.
I long contemplated these beautiful scenes with infinite
pleasure, when, all of a sudden, I saw, in one of the Aiguilles
Rouges, a structure which instantly gave rise to another or-
der of ideas, not less grand and elevated than the reverse,
into which the contemplation of the grand spectacle under
my eyes had thrown me.
I observed to the north-east, on the most elevated summit
of the Aiguilles Rouges, some beds very nearly horizon-
tal, contrasting singularly with the vertical beds which
form the whole of this chain. The singularity of this hori-
zontal layer at such a great height, made me instantly com-
prehend the importance of this observation. My guide, Jo-
seph Couttet, was well acquainted with all the arrangements
of the rocks, as well as with the minerals in the vicinity of
Chamounix. I asked him if he knew whether slates or lime-
stones had ever been found in this locality. He assured me
that they never had—that no one had ever seen them—and
that it was useless to go in search of them. The interest I
attached to this observation increased every instant. I im-
mediately changed my itinerary, and determined, after visit-
ing the neighbourhood of Lake Cornu (2304 metres by baro-
meter), again to go and spend the night at Croix de Flegére.
On my way, I had an opportunity of seeing different curious
objects, among others the Lac Noir. This lake, some hun-
dred paces in length, is placed in the centre of an immense
space, dazzling with snow. The latter penetrates into the
lake ; all the portion of the water which is above the snow
is of the purest sky-blue. In the centre of the lake, which
is without snow, and thrown, so to speak, into the shade by
that at the margin, the water is of a fine black. The great
plates of snow thus remaining between two waters, are per-
forated with a multitude of holes of various forms (produced
by currents caused by the action of the sun), presenting a
kind of Gothic architecture of the most singular nature. I
likewise examined the position of the eclogites, serpentines,
and remarkable traces of the erratic phenomenon.
in the Neighbourhood of Chamounix, in Savoy. 79
On the 13th of August, Couttet and I were again in motion
in order to attempt the ascent of the Aiguille Rouge. We
were aware that it was no easy task. We first passed near
Lac Blanc, remarkable for the traces which ancient glaciers
have left there, and by the moutonnéed rocks which surround
it. Approaching the Aiguille Rouge, we arrived at a glacier
which is visited only by a few shepherds and hunters. The
aiguille we were anxious to reach is in the highest part, and
in the middle of this glacier. After examining it well, we
thought we could reach the summit, by following the southern
ridge. We traversed the length of the glacier notwithstand-
ing its crevasses, and reached the ridge, but there we encoun-
tered insurmountable difficulties. We had again to descend
a part of the glacier on a rapid declivity full of crevasses, in
order to reach the ridge which connects this aiguille to the
other Aiguilles Rouges, on the north side.
Walking along this snow-covered glacier with great precau-
tion, at the base of the aiguille we found some fragments of
rocks, which had fallen down from it. The importance which
I attached to the observation I had made, was more than
doubled at this instant. I was certain of finding interesting
rocks on the summit of this aiguille, if I could reach it. In
fact, these debris consisted of slates and limestones. After
this discovery, Couttet, avho had never believed in the possi-
bility of finding these rocks on the peak of the Aiguilles
Rouges, became as desirous as myself to gain the summit.
Although the ascent appeared to us difficult from the ridge
where we now stood (2802 metres, by barometer), we did not
despair of accomplishing it. We deposited our provisions
near a beautiful vein of quartz and tourmaline, taking nothing
with us but a hammer and my barometer. After climbing to
a great height over rocks partly fallen, and along terrible
precipices, we arrived at a ridge of snow and ice too much
inclined, and bordered with too formidable precipices, to ren-
der it possible for us to pass. We continued long consider-
ing whether there might be the means of cutting steps in
the snow, but all was vain. It was not till Couttet declared
to me that they never, either in ascending Mont Blane, or
in chamois-hunting, attempted to cross such places, that I
80 Professor Favre’s Geological Researches
consented to descend to Chamounix, greatly disappointed at
not being able to verify this slate formation, but satisfied
that I had done all with that view that could be reasonably
expected.
Couttet advised me not to give up my object, but to try the
ascent again by a ridge which descends from this mountain
to the Col de Berara, on the side of Buet.* I determined to
follow his advice, resolving at the same time, that if I
should again fail, to renew the attempt with a greater num-
ber of guides, provided with hatchets, cramp-irons, and ropes.
For two days I was diverted from my object by other ob-
servations, but on the 16th of August, I went from Chamou-
nix, and passed the night at Valorsine, and on the following
day ascended to Buet. This journey was the more fatiguing,
as the bad weather did not allow me to refresh myself on the
summit, by enjoying the view.
In my ascent from the Pierre 4 Berard to the top of Buet,
I found the following formations ;—
1. Rose protogine, and crystalline slates.
2. Quartzy sandstone, greenish, with rose-coloured grains.
3. Quartzy sandstone, of a yellowish colour.
4. Argillo-ferruginous slate, red and green.
5. Cargneule, with sulphate of barytes and reddish lime-
stone. m
6. Slate and limestone slate, with belemnites of great
thickness.
I observed that the anthraciferous formation which is re-
presented here by the beds, Nos. 2, 3, and 4, as weil as the ju-
rassic formation, No. 6, rest, with a discordant stratification,
on the crystalline slates which form the base of Buet. Not
only did I observe, as was done by Saussure (Voyages, § 555
and 556), that the rocks of the secondary formations rest
upon masses of crystalline slates, but I also noticed that
the crystalline slates were directed to the north or north
10°:0, and that the limestone rocks and slates were directed
to the north 20° or 25° east. Yet I indicate these two direc-
* This col is situate on a line drawn from the Aiguilles Rouges to Buet, and
not on the north of that mountain, as it is placed on many maps.
en the Neighbourhood of Chamounix, in Savoy. 81
tions with doubt, since I reperused the paragraphs in the
Voyages referred to above, in which Saussure says, that the
crystalline slates and the secondary rocks, lie in the same
direction. This is an observation, therefore, which deserves
to be verified.
If the fact of the nonconformity of these two formations
be correct, it is new and important in the geology of Savoy,
although it has already been observed in Dauphiny,* and
M. de Charpentier has noticed it in the Valais, on the right
bank of the Rhone.t This observation is particularly im-
portant in the history of the anthraciferous formation. It
proves that it is independent of the crystalline slates. We
likewise know that it is separated from the jurassic forma-
tion by this same character of discordancyj which is the
greatest that geognosy can furnish.
I redescended the Buet by the Col de Salenton (2532
metres, by barometer) where the formations present, with
great distinctness, the same section as that which I have in-
dicated at the Buet, except that we may here observe in this
anthraciferous formation a thin bed of slate, placed between
the sandstone and red and green argillo-ferruginous slate.
This bed is probably the same which, near De Moide, con-
tains such a large number of vegetable impressions.
By following, as I afterwards did, the western slope of the
elongation of the chain of the Aiguilles Rouges, formed by
Mont Loguia, Gros Perron, Bel-Oiseau, &c., we find a series
of cols placed, like that of Salenton, between the crystalline
chain and the secondary chain. These are the Col des Vieux
Emoussons, Col de Barberine, Col de Emmaney, and Col du
Salentin. All are exactly on the limit of the two orders of
formation, and present sections very nearly identical.
I passed a most uncomfortable night in the frightful chalets
of Villy (1879 metres, by barometer) ; and on the following
day Couttet and I set out for the highest peak of the Aiguilles
* My memoir, entitled Remarks on the Anthracites of the Alps, p.17 ; Mem.
de la Soc. de Phys. et d’Hist. Naturelle de Geneve, t. ix. p. 425.
t Charpentier, Memoir on the Nature and Position of the Gypsum at Bex,
Annales des Mines, 1819.
t Observations on the relative Position of the Formations of the Alps, &c.
Archives, 1847, t. vi. p. 121.
VOL, XLV. NO, LXXXIX.—JULY 1848. Fr
82 Professor Favre’s Geological Researches
Rouges, which had already twice frustrated our efforts. We
soon arrived at the Col de Berard, an elevated passage of
2463 metres, by barometer, and which is not without danger,
as a glacier covered with snow had to be crossed. From the
summit of the col, we follow the ridge looking southwards.
Along this ridge it is very difficult to advance. We require,
indeed, to walk on large fragments of rock which are easily
displaced. We move on, however, with a kind of enthusiasm.
Couttet shared in my zeal. We soon arrive at a first
aiguille placed on the ridge we are following. It is com-
posed of crystalline slate, and contains a bank of saccaroidal
limestone. From this point, we see the upper part of the
Aiguille Rouge, and the beds of slate and limestone on its
summit. We now see no obstacle to prevent us reaching it,
and our joy is great. We must descend from this aiguille,
and pass near a small lake surrounded with snow and rocks ;
a lake which certainly had never before been visited by man.
At last we arrive at the last acclivity of the peak of the
great aiguille; we walk on the slates and limestones. TI had
reason, therefore, to attach importance to these horizontal
beds, which I had seen through my glass from the top of Gliére.
The first thing to be done is to reconnoitre the locality and
take a glance at all the rocks: for this purpose we must
reach the summit. There are two ways to it; one follows
the side of the aiguille as far as the southern reverse, and by
that it appeared to us that we could ascend. But to reach
it, it is necessary to walk on a cornice of a foot broad, with
an immense precipice on the one side, and an overhanging
rock on the other, which perhaps will completely close up the
passage. We try another way ; it also is quite impracticable,
opening on to a kind of bridge, one or two feet broad, and
terminated by a rock six or eight feet high, which from its
form would be difficult to scale, even were it otherwise acces-
sible than by the narrow passage which leads to it. I was,
therefore, compelled, to my great regret, to abandon the idea
of reaching the highest point of this chain. I calculated,
however, that I was within 16 metres of the summit, that is
to say, nearly the height of the peak of the other Aiguilles
Rouges. Iam certain that this estimate of 16 metres, then,
cannot be any considerable error, for both Couttet and my-
in the Neighbourhood of Chamounix, in Savoy. 83
self made it separately, so that this number, added to the
barometrical height which I took, gives the height of the
Aiguille, without there being any other cause of error than
that arising from the barometer. This total height, or ele-
vation of the summit of the Aiguilles Rouges above the level
of the sea, is 2944 metres.
A geological examination of these 16 metres could give
me no farther knowledge, the rocks being entirely formed of
the same limestones on which I was walking, and which I
could examine at my ease.
The following is a brief view of the observations which I
made on this extraordinary formation, and which had never
been examined by any of the numerous naturalists who have
visited this country.
1. The most elevated part is formed by various calcareous
slates. They are blackish, containing beds of ferruginous
limestone, and a species of hornstone. Others are yellow-
ish, and impregnated with a talcose matter, either more or
less argillaceous and kidney-shaped. They contain frag-
ments of belemnites, ammonites, and stalks of encrinites.
There can be no doubt that these beds belong to the jurassic
formation. They are about 34 metres in thickness.
2. Below, are found black slates and greyish-blue lime-
stone, traversed by veins formed of quartz and calcareous
spar; further down we meet with cargneule. The two
former of these rocks are about 4 or 5 metres in thickness.
The thickness of the cargneule cannot be measured, but it
is only a few metres. I have not found distinctive characters
to induce me to refer these beds to the jurassic formation
rather than to the anthraciferous formation.
3. The anthraciferous formation, formed by red and green
argillo-ferruginous slates, and quartzy sandstone. The thick-
ness is 9 metres.
4. Crystalline slates of a wine and green colour, which
are in vertical beds, and on which the preceding beds lie,
with a non-conforming stratification, that is, if we regard
the divisions of the crystalline slates as being an indication
of stratification.
The calcareous beds which form the most elevated peak
of the aiguille are horizontal; the beds of the anthracife-
84 Professor Favre’s Geological Researches
rous formation, and particularly those of the sandstone, are
slightly undulated and modelled on the asperities of the
crystalline ground. They occupy a small part of the northern
slope of the aiguille, and are raised against the great Alps.
I shall not state the other observations I masle in this loca-
lity. My object is not to enter into minute details in this
place, but to throw a glance at the general structure of this
part of the Alps. It is evident that the rocks on the sum-
mit of this Aiguille Rouge are a prolongation of the lower
part of the sedimentary formations of the Buet, and of those
which rest upon the base of these aiguilles in the valley of
Chamounix. Now, I estimate the thickness of the jurassic
formation, by means of barometrical measurements, at 800
metres at least ; consequently, if there were no sinking down
immediately after elevation, and no denudation since that
time, the jurassic formation would rise on the Aiguilles
Rouges, at least to the height of 3750 metres (a fig. 1), and
the Buet, of the height of 3100 metres, would be the north-
ern declivity of this great mountain, and not, as it seems
now to he, the principal chain.
We must consider the chain of the Aiguilles Rouges as a
great mass of crystalline rocks, extending from Servoz as far
as the banks of the Rhone, near St Maurice in the Valais.
It is flanked on the north-west side by the great jurassic
chain of Buet, the prolongation of which, to the south-west,
is crowned by the cretaceous limestones of Fiz, and which is
continued to the north-east as far as the Dent du Midi, above
St Maurice. The beds of this great secondary chain are
raised up to the south-east against the chain of the Aiguilles
Rouges and the Brevent. Passing along the escarpment
which it presents on this side, we can examine all the nu-
merous and varied formations comprised between the num-
mulitie beds and the crystalline slates. All these beds ap-
pear, therefore, to form the northern base of a vault or
gigantic elevation, the beds of which must have passed below
the Aiguilles Rouges.
On the south-east, this chain is likewise flanked by the
formations of the valley of Chamounix and the Col de Balme,
which are upraised against the Aiguilles Rouges. They ap-
pear to form the southern base of the great vault or ele-
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in the Neighbourhood of Chamounix, in Savoy. 85
vation, of which the Buet and the Fiz form the northern lip.
Lastly, the nearly horizontal beds of the Buet, as stated by
M. Saussure (§ 581), and the perfectly horizontal ones of
the Aiguille Rouge, are the prolongation of the formations
of the two declivities, and leave no doubt as to the ancient
formation of this great vault which, from Sixt (about 750
metres) rises first to the Buet (3100 metres), then to the
Aiguilles Rouges, of which the jurassic formation alone
reached, before the falling down of this great mass, the
height of 3750 metres, and descended to Chamounix (1050
metres), to be continued perhaps beneath the ground.
The sedimentary formations, therefore, in this part of the
Alps, seem to be arranged not by relation to the central chain
of Mont Blanc, but by relation to the chain of the Aiguilles
Rouges and the Brevent; and, what is very extraordinary,
we cannot discover what has been the influence of the chain
of Mont Blane, in this part of the Alps, on the upraising of
the beds. It seems to have had no effect.
Figure 1 (Plate I.), represents, nearly on a scale of
ysdv00, the section taken from Sixt to the Aiguille Verte ;
it passes, as will be seen, by the summit of Buet, the Col
de Salenton, the Col de Berard, the most elevated of the
Aiguilles Rouges, and the valley of Chamounix. This is the
only point where the secondary chain of the Buet is not se-
parated from the chain of the Aiguilles Rouges by a deep
valley. The dotted line indicates the form of the great vault
of jurassic limestone, and the height to which this formation
must have been raised at the time of its elevation. Fig. 2
represents the summit of the Aiguille Rouge on a larger
scale. The first of these two sketches represents the same
chain, and the same assemblage of formations as that figured
Pl. IIL., fig. 1, of M. Necker’s Memoir on the Valley of Valor-
sine.* This section is taken a little more to the north than
that which I give here. The only changes to be made would
be to add to my section the granite figured in M. Necker’s,
and to add to the summit of Mont Loguia, figured by the lat-
ter, the horizontal beds of limestone on the summit of the
Aiguille Rouge.
* Memoires Soc. de Physique et d’Hist. Naturelle de Geneve, t. iv., p. 209.
86 Description of some Sepulchral Pits of Indian Origin.
If I have not yet succeeded in giving a very satisfactory
elucidation of the regularity of structure in this part of the
Alps, I yet believe that I have made a step in the direction
of the truth, by making known an observation which is by no
means unimportant in a locality which deserves to be visited,
and which, notwithstanding, has not yet been so.
A Brief Description of some Sepulchral Pits, of Indian origin,
lately discovered near Penetanqueshene. By EDWARD W.
BawtTreE, M.D., Staff Assistant-Surgeon. Communicated
by Sir JAMES Macericor, Bart, F.R.S, &c., Director-
General of the Army Medical Department. (With a Plate.)
With the exception of a short article by Captain Anderson, of the
Indian Department, which appeared in the British Colonist News-
paper of 24th September 1847, the author of this communication is
not aware of the existence of any other on the subject proposed ; his
means of reference, however, are limited. Should any such have
been previously published, the present paper, it is hoped, if of any
interest whatever, will retain that interest by the few additional facts
it is supposed to contribute.
Within the last two years, a quantity of human bones were found
in one spot near Barrie, which excited no particular interest at the
time ; since that, a pit, in the township of St Vincents, which had
attracted attention, was opened, and found to contain an immense
number of human bones, with several copper and brass kettles, and
various trinkets and ornaments in familiar use among Indians. This
discovery led last autumn to the more accurate examination of a pit
of the same description, about seven miles from Penetanqueshene, in
the township of Giny. This pit was accidentally noticed about four
years ago by a French Canadian, while making sugar in the neigh-
bourhood. He was struck by its appearance, and the peculiar sound
produced at the bottom, by stamping there; and, in turning up a
few spadefuls of earth he was surprised to find a quantity of human
bones. It was more accurately examined in September last, and
found to contain, besides a great number of human skeletons, of both
sexes and all ages, twenty-six copper and brass kettles or boilers,
three large conch-shells, pieces of beaver-skin, in tolerable preserva-
tion, a fragment of a pipe, a larg iron axe, evidently of French manu-
facture, some human hair (that of a woman), a copper bracelet, and
a quantity of flat auricular beads, perforated through the centre.
The form of the pit is circular, with an elevated margin; it is
about fifteen feet in diameter, and, before it was opened, was probably
nine feet deep, from the level of its margin to the centre and bottom ;
its shape, in one word, funnel-shaped. It is situate on the top of a
gentle rise, with a shallow ravine on the east side, through which, at
a
Description of some Sepulchral Pits of Indian origin. 87
certain seasons, runs a small stream. At the present time, there is
nothing peculiar or striking in its position, except, perhaps, the spot
being nearly central on the peninsula which extends into Lake Hu-
ron, between Gloucester and Nottawaraga Bays, and which is deeply
indented by Thunder Bay and Penetanqueshene Harbour, and from
both which bays the spot is nearly equidistant. The locality is not
elevated above the surrounding country; the soil is light, free from
stones and dry ; a permanent stream runs within a quarter of a mile
to Nottawaraga Bay ; and there is a fine spring of water within a
few hundred yards. The character of the bush surrounding it seems
similar to that elsewhere ; the timber is generally of hardwood, and
well used; a small ironwood tree, about two inches in diameter,
grows in the centre of the pit.
In consequence of the scramble among the French Canadians,
which followed the first finding of the kettles, the exact position of
the different contents of the pit could not be accurately observed.
The bones had been removed to the depth of three or four feet before
any of the other contents. The kettles were found arranged over its
bottom, with their cavities upwards, placed on pieces of bark, and
filled with bones. They had evidently been covered with beaver-skins,
as pieces of that fur were still adhering to them in good preservation.
The shells, as well as the axe, were found in the intervals of the
kettles, the beads within them, and in scattered groups elsewhere
among the bones, generally in bunches of strings. The other objects
were picked up after the pit had been disturbed, by some Canadians,
who made a second search.
The kettles resembled somewhat the copper boilers in use at the
present day; they appeared to be formed of sheet-copper, the rim be-
ing beaten out to cover a strong iron band, which passes entirely or
only partly round the neck of the vessel, for the purpose, evidently,
of strengthening them, and to carry the iron hoop by which they
were suspended, and which, with a somewhat clumsy hook on either
side, is attached to an eye upon this band. The smallest of them
measures about eigliteen inches in diameter, and seven in depth, and
will hold about six gallons ; one of the largest is more than two feet in
diameter, and thirteen in depth, the thickness of the metal about one-
sixteenth of an inch, The handle remains perfect in some, in the
form of a strong semicircular iron hoop ; the copper is in good pre-
servation, the iron deeply corroded. No stamp or maker’s name
could be found on them; on the base of one only was a mark, as
shewn on the margin; in some, red paint, resembling chalk, and the
inside of a piece of beaver-skin was marked with a similar matter.
Two of the kettles were of brass, constructed much in the above
manner. One only varied in shape from the others, and seemed as if
the upper part of it had been cut off: the sides, too, were nearly
perpendicular, whereas those of the remainder were circular in every
way, though varying in degree of rotundity.
The accompanying sketch is intended to shew ono of the largest
88 Description of some Sepulchral Pits of Indian Origin.
and most perfect (fig. 1, Plate II.), and also the smallest of them
(fig. 2). The brass kettles were of rather neater workmanship than
the copper; the lip being turned over in a scroll, and the hooks for
the handle well rivetted on to the vessel.
The largest of the conch-shells weighs three pounds and a quarter,
and measures fourteen inches in its longest diameter. Its outer sur-
face has lost all polish, and is quite honeycombed by age and decom-
position ; the inside still retains its smooth, lamellated surface. It
has lost all colour, and has the appearance of chalk. A piece has
been cut from its base, probably for the purpose of making the beads
that were found with it. Another of these shells is smaller in size,
and in better preservation, probably from having been originally a
younger shell ; its substance is tnimpaired by age, though it has lost
all colour. From the base of its columella a considerable piece has
been cut, in a regular and even manner, as if, too, for the purpose of
making the before-mentioned beads. The extreme point of the base
of each shell has a perforation through it (fig. 3).
The axe is nearly of the same model as the present tomahawk in
use among the Chippeway Indians for their hunting excursions, though
very much larger, measuring eleven inches in length and six inches
and a half along its cutting edge, and weighing five pounds and a half.
It must have lost considerable weight, as it is deeply indented by
rust; it has no characteristic mark, but was recognised by the French
Canadians as being most likely of French manufacture, and similar
ones have been found in the neighbourhood, on newly cleaned land ;
no less than five of the same pattern were found under a stone near
Thunder Bay, a few years back, where they appeared to have been
placed for concealment. The metal of these axes is remarkably good,
and easily converted into useful hoes by the Canadians (fig. 4).
The pipe is imperfect. It is made of the earthenware of which so
many specimens are found in the neighbourhood, in the form of
vessels and pipes; and the spots where the manufacture of these
things were carried on are still to be seen in some places (fig. 5).
The Beads are formed of a white chalky substance, varying in de-
gree of density and hardness ; they are accurately circular, with a
circular perforation in the centre ; of different sizes, from a quarter
to half an inch, or rather more, in diameter, but nearly all of the
same thickness, not quite the eighth of an inch; they may be com-
pared to a peppermint lozenge with a hole through its centre. They
were found in bunches or strings, and a good many were still closely
strung on a fibrous woody substance. One of these strings was re-
marked as being composed of a row of beads regularly graduated in
size, from the smallest to the largest. The above mentioned appear
to have been the characteristic objects contained in this pit. The
beaver-skin was found in pieces, but many of them in good preserva-
tion. The Bracelet is a simple band of copper, an inch and half
broad, and fitting the wrist closely. The hair is long, evidently that
of a woman, and quite fresh in appearance.
Description of some Sepulchral Pits of Indian Origin. 89
The second pit was opened on the 16th of September last; it is
about two miles from the last, or lot 18th, 17th Concession of Giny,
It was accidentally discovered by the owner of the land, who settled
on it last year, while searching in the bush for his cow. It is consi-
derably smaller in diameter than that just noticed, being only about
nine feet, and its depth, when dug out, the same. It is situate on
rising ground, in light sandy soil ; but there is nothing now remark-
able in its situation. A beech-tree, six inches thick, grew- from its
centre. It probably contained nearly as many bones, as there were
no kettles to narrow the above space, which was entirely occupied by
them. The bones seemed to belong to persons of both sexes, and
all ages, though in this pit there were probably fewer of a smaller
size ; among them were a few foetal bones. On the skulls which were
found in the last pit, it was remarked that no signs of violence could
be detected ; and when any fractures existed, they appeared to be
easily accounted for by natural causes, as many of them were much
decomposed and brittle ; but in this the fractures and injuries found
on the skulls could hardly be explained in that way, and it is thought
must have been produced previous to death. It was remarked pretty
satisfactorily, that the injury was more common on the left side than
the right ; many were found with the left parietal bone quite broken
in, while a fracture of the right was comparatively rare ; in one skull
was a clean round hole, of the size of a musket ball, and in another
a circular depression of the same size, appearing to have been an old
gunshot wound. Besides those indistinctly fractured on the parietal
region, a great many others had quite collapsed, and become flattened ;
and, from the fact of their not appearing more decomposed than the
entire ones, and from the known strength of the uninjured skull, it is
perhaps not unreasonable to conclude that they had been previously
fractured.
Besides the bones was a fragment of a brass vessel and a variety
of beads. This vessel, of which a small piece only of the rim re-
mained, must have been about a foot in diameter, and probably re-
sembled the brass kettles last noticed, as the rim had been neatly
turned over in a scroll which covered a small circular iron hoop
about a quarter of an inch in diameter. At one point a square
piece of the same metal is neatly folded over its edge, having an eye
in its centre for the attachment of the handle. This vessel could
hardly have been destroyed by time, as the pit was perfectly dry,
and apparently more adapted to preserve its contents than the last
one opened, and it would seem as if the piece had been buried in
the state in which it was found. It had evidently been packed in
furs. The beads or Whampum found in this pit were of several
kinds. The principal were chalky-looking bodies, varying in size
from a quarter to an inch and half in length, of irregular shape and
thickness, some being quite flat and oval, others nearly circular,
while a great many distinctly shewed, by their fluted and irregular
surface, their probable origin, namely, the convolution of a large
90 Description of some Sepulchral Pits of Indian Origin.
shell. On some the smooth inner surface still remains in the form
of a depression, and in others the worn edge shews the structure and
formation. Each is perforated through its long axis; they were
found in bunches, and had evidently been strung together in gra-
duated rows of large and small. Besides these were found cylin-
drical pieces of earthenware and porcelain, or glass-tubes, from an
eighth to a quarter of an inch in diameter, and from a quarter to
two inches long; the former had the appearance of red and white
tobacco-pipes worn away by friction, the latter of blue and red
glass. An hexagonal body with flat ends, about an inch and a-half
in diameter, and one inch thick, was also found. It seemed to be
formed of some kind of porcelain, being of hard texture, nearly
vitreous, and much variegated in colour, with alternate layers of
red, blue, and white. This also was perforated through; the centre,
and was probably used as an ornament, or formed part of a pipe.
(Fig. 6.) This pit was carefully examined, and it is worthy of
notice that no lozenge-shaped beads like those found in the last
and two following could be detected by the closest search,
The third of these sepulchral pits which have been examined can
hardly be said to be in this neighbourhood. It was visited on the
4th November last, and is situated on lot 7th, 8th Concession of the
township of Oro, and had been opened by the proprietor of the land
about a fortnight before. The land belongs to a Mr Galbraith, an
intelligent Highlander, who gave a very distinct account of the ex-
ploration of the pit. It had been cleared for several years, and no
notice taken of the pit till the above time, when a new settler built
a shenty nearly over it. A French Canadian happening to come
there to work at the house, immediately recognised its peculiar ap-
pearance, and told the people that if they would dig there, they would
certainly find plenty of bones and twenty-six kettles,—a prediction
which was speedily verified.
This pit is on elevated ground, in the midst of a fine undulating
and hilly country, but apparently without any relation in its situa-
tion to surrounding objects or places, except, perhaps, that it is on a
short line of communication between Lakes Simcoe and Huron. The
soil is a light loam. It measures about fifteen feet in diameter, has
the distinctly-defined elevated ring, but the centre less depressed
than in those before examined, which may have arisen from the
character of the soil, or the greater bulk of its contents. On its
margin grew formerly a very large pine, which was cut down at the
clearing of the land. The roots of this pine had grown through the
pit in every direction.
The bones were scarcely covered with earth ; they were of all sizes.
Galbraith himself made a rough calculation of their number by
counting the skulls from a measured space, which gave to the whole
not less than fifteen hundred; this was probably an exaggerated
number, though they undoubtedly amounted to several hundreds.
They were in good preservation ; on some, pieces of tendon still re-
Description of some Sepulchral Pits of Indian Origin. 91
mained, and the joints of the small bones in some cases were un-
separated. It was noticed that only a few of the skulls bore marks
of violence. One which was exposed in our presence had a circular
perforation on the top resembling a bullet hole, and others, it had
been observed, bore the appearance of having been “ tomahawked.’’
A similar observation was made on the size of the bones as had been
on those found in the other pits, that some of the lower jaws were
very large, and would amply encircle that of a full-sized European.
The cylindrical bones did not appear, however, to be of unusual
size.
As in the first noticed pit, so here were found also twenty-six ket-
tles,—four of brass, the rest of copper; one conch-shell, one iron axe,
a pipe, and some of the lozenge-shaped beads.
The kettles in this pit were deseribed as being arranged in the
form of a cross, through its centre, and in a row round the circum-
ference. From observations made with the compass, it is probable
that the points of this cross bore a relation to the cardinal points :
two of them faced upwards, the others were placed with their bases
upwards. Theconch-shell was found under one of the kettles, which
had all been carefully packed with beaver skins and bark. They re-
sembled exactly those before described, but averaged a smaller size.
They were in good preservation; but, with this peculiarity, that each
had been rendered useless by blows from a tomahawk. That they
had been intentionally cut into, there can be no doubt,—some bear-
ing one, others three or four clean incisions, which were all of the
same length and shape, and all on the base of the kettle; they had
evidently been made with an axe, and the size of the cuts seemed to
correspond to the edge of the one found with them. Should any
doubt exist as to the exact history of these pits, the fact of these
kettles having been rendered unserviceable, seems highly calculated
to increase that doubt, as it appears to have been a proceeding so
very contrary to the habits and ideas of Indians in general.
The conch-shell is smaller than those found in the township of
Giny. It is in good preservation, though quite white, and, in some
parts, has lost its smooth surface. A piece has been cut from it as
in the last described.
A pipe was also found, which the person who explored the pit de-
scribed as having been formed out of bluestone or hard clay, and
very neatly cut in a succession of circles, the base being nearly as
large as a common tumbler. On one side it had a human face, the
eyes of which were formed of a fine white pearly-looking bead. ‘This
pipe was unfortunately destroyed by some drunken farmers while ex-
amining it. It was described as being remarkably handsome, and
would have been more carefully preserved had the discoverer noticed
its beauty at first ; but in its dirty soiled state, he paid but little at-
tention to it, An iron axe, exactly similar also to that before no-
ticed, though of smaller size, was found ; and a large quantity of the
flat circular beads.
92 Description of some Sepulchral Pits of Indian Origin.
The fourth pit to be noticed was opened on the 19th December
last; it had been known for some time to a French Canadian, who
came upon it accidentally in the bush, and expressed no curiosity
concerning it, till his attention was more immediately drawn to the
subject by the recent discoveries of the same kind.
It is situate on a gentle slope, probably on lot 110, second Con-
cession west of the Penetanqueshene road, and in the township of Giny,
having no peculiar feature in its locality, except a small and highly
picturesque lake at a short distance, which is surrounded by a cran-
berry swamp. This, however, can hardly be a feature worthy of
notice as such. Lakes abound in the neighbourhood, and few are
more than two miles distant from others. It is about two miles
from the head of Penetanqueshene Bay. The soil in which it is
formed is sandy, and free from stones.
The size of this pit is about the same as those of Nos. 1 and 3;
and it is supposed to have contained about the same number of skele-
tons as the first of them. The other contents were—sixteen conch-
shells, a stone-pipe, a clay-pipe, a species of pipe or ornament of
which the use is not exactly known, copper-bracelets and ear-orna-
ments, eleven beads of the red pipestone, copper arrow-heads, a cup
of iron which resembled an old iron ladle, beads of several kinds, and
pieces of fur, among which that of the martin could yet be distin-
guished.
The shells seemed to be arranged round the bottom of the pit,
not in a regular row, but in threes or fours; the other things were
found mixed with the bones. The bones were of all sizes, and the
skulls uninjured except by time.
The conch-shells were exactly similar to those found elsewhere,
and require no further description. The accompanying sketch will
perhaps sufficiently shew the character of the pipes. The stone-pipe
still contained some tobacco, which was burned by the finder for the
purpose of analysis. (Fig. 8.)
The stone ornament or pipe, fig. 7, may probably be recog-
nised as appertaining to the “ medicine ceremonies,” still in use
among some tribes of Indians; the stone of which it is formed is
common in the neighbourhood, and does not appear to be that usual-
ly applied to the formation of pipes. A lizard’s head composes a
handle to the flat circular part, which is about five-eighths of an inch
thick, having on its upper surface a cavity which would contain about
the point of the thumb, and to the bottom of which passes a small hole,
apparently adapted for the attachment of a pipe-stick, Another
perforation on the side and lower edge seems to have been used to
suspend it by.
The arrow-heads, as they were supposed to have been, were simple
folds of sheet-copper, resembling a roughly-formed ferrel to a walk-
ing-stick.
Besides the lozenge-shaped beads, which were found in great num-
bers, were a few cylindrical porcelain beads, resembling those from
_
Description of some Sepulchral Pits of Indian Origin. 93
pit No. 2, as well as two other varieties. One of them consisted of
cylindrical bodies, resembling the porcelain just noticed, but of a dif-
ferent material ; they averaged three-eighths of an inch in length,
and two-eighths broad,—had a large central perforation, and ap-
peared to have been formed of shell, the convolution of which is
shewn on some of them in a small oblique groove. The other va-
riety was a small oval bead of glass or porcelain, which had pro-
bably been used for ornament, and some pieces of shell of various
shapes, also found there, seemed to have been applied to the same
purpose.
The red stone beads (fig. 10), were five-eighths of an inch broad,
and three-eighths thick, irregularly circular, with flat ends, with two
small holesat one end uniting with the other.
It is perhaps worthy of remark, that no hair was found in this pit,
as in two of the others. This fact might tend to prove a difference
in the date of their formation.
There is every reason to believe that the above noticed form but
a small part of the number of such collections of bones that are to
be found in the neighbourhood. The French Canadians, now that
their attention has been directed to the subject, and they have been
made familiar with the appearance of the pits, say that they have in
several places observed them during their rambles in the bush, though
at the time they paid but little regard to them.
But besides these, larger and more evident excavations, which,
once seen, would not again be passed unnoticed ; smaller ones of the
same shape and apparent character are frequently met with. The
Canadians now often notice them; and people accustomed to the
woods can easily recognise their peculiar features. It is not unusual
to hear them called “ potato-pits,”” as supposed to have been made
by the Indian inhabitants, for the purpose of preserving that vege-
table in. No less than five of them were found by a farmer within a
quarter of a mile of the second pit just described ; they were close
together. One of them he carefully dug out to the depth of six feet,
as the ground appeared to have been disturbed to that extent, when
he came to solid clay. It was about four feet in diameter. The
only relic it contained, but which satisfactorily proved its connection
with Indian customs, was an iron or steel arrow-head, fig. 9.
A second of the same description that has been examined, is situ-
ate about a hundred yards from the beach, in a little sandy bay in
Penetanqueshene harbour, generally called Colbourne Bay. There
ean be little doubt of its artificial origin, though the most minute
search failed to detect anything that would explain the purpose to
which it had been applied.
There is another on a piece of high land opposite the garrison,
which forms a part of the government revenue at the entrance of the
harbour, The spot is nearly bare of trees, and has the appearance of
an old clearing ; it is about two feet and a half deep, through light
94 Description of some Sepulchral Pits of Indian Origin.
sand, with a hard gravelly bottom, and about three feet in diameter.
Nothing was found in it but pieces of bark ; these, however, were
carefully packed over the bottom of the pit, evidently to form an
artificial flooring.
In the neighbourhood of pit No. 4, are several of the smaller ones,
two or three of which have been opened, but the winter season pre-
vented their accurate examination. Pieces of pottery, and one or
two human bones were found in them, mixed with stones, and very
black mould, which seems to strengthen the supposition previously
formed, that they are Indian graves from which the bodies have been
removed for interment in the larger pits.
For the origin of these sepulchral pits (for that appears the most
appropriate name to give them) we must refer to the time when the
Huron tribe of Indians inhabited this part of the country. That
they are connected with a form of sepulture in use among these ori-
ginal occupants of the soil, there can be little doubt, although the
exact explanation of each does not seem to be quite so satisfactory,
owing to some apparent inconsistency, which will be presently noticed,
in the character of the deposits found in them.
As relics of a nearly extinct race of Indians, these remains are
highly interesting ; for although a remnant of the original Hurons
still remains in the neighbourhood of Quebec, they have long since
entirely disappeared from the shores of their own lake, It is now
nearly 200 years since they were driven from their country by the
Troquois, and these again have been expelled by the Ojibbeway or
Chippeway Indians, who came down from Lake Superior, and whose
claim to the land must have been of distant date, as it was by them
ceded to the Crown; and though they so lately owned the country,
and still occupy that in the immediate neighbourhood, they hold no
traditions concerning these pits, and have no customs that shew any
connection with them.
The Chippeways have ever formed a wandering nation, without
any settled residences. Their habits have little to interest ; but the
Hurons were far different. One of the most powerful and numerous
of the Indian tribes of ‘‘ New France,” the French were glad of
their alliance. They found them, Charlevoix says, spirited, enter-
prising, industrious, and brave, with considerable ingenuity and elo-
quence. They dwelt in well-fortified villages, and made war in large
bodies; but from mismanagement of their confederation of branch
tribes, and a peculiar failing of simplicity, and want of precaution,
they fell victims to the fierce and more warlike Mohawks, and the
powerful alliance of the five nations, whose love of war and plunder
was fostered and encouraged by the newly-settled English and Dutch.
There can be little doubt, it is toa form of burial in use among them
that the remains under notice may be attributed. Of the ceremony
attending it, an interesting account may be found in Charlevoix’s
letters, a journal of a tour through this and other parts of Canada
Description of some Sepulchral Pits of Indian Origin. 9
and America. Although the custom he describes is only mentioned
as in use among certain tribes, there can be little doubt that his in-
formation is taken from the Hurons (in fact, he afterwards says as
much), as his letters on the subject of this part of Canada are chiefly
a history of the French Jesuit mission, among this tribe, the one
which chefly formed the object of their Christianizing cares. This
history is highly interesting, and, at first sight, might be considered
to have more connexion with the general subject than it really has.
The dreadful massacres which attended the extermination and ex-
pulsion of the Hurons, then chiefly under the guidance of a strong
body of Jesuit priests, might at the first glance be thought sufficient
to account for these large deposits of human bones, which have been,
and probably will still be found chiefly in the neighbourhood of these
scenes ; and it is likely that some were the results of these massa-
cres, or, at all events, in some way connected with them, though,
from the mode of treating their dead after battle, as recorded to have
been in general use at the time among Indians, that alone will not
fully explain their origin. The following is an abstract of the ac-
count given by that author, which is thought to bear sufficiently on
the subject to make it worthy of being introduced, more especially
as the work may not be easy of access to a great many, ‘The de-
tails describe scenes of extreme cruelty and ferocity in the treatment
of their captives by the Troquois. Many of the localities have been
distinctly recognised, within the last three years, by M. Choisil, a
French Jesuit, who visited them by means of a map, procured, it is
said, from the chief Jesuit establishment at Paris. He died unfor-
tunately before he had completed his tour, The Canadian voyagers
who accompanied him were surprised at the facility with which he
steered the canoe to each spot, and, in some instances, at once found
remains which they had never seen or heard of, and which probably
had not been visited by a European since the time that the French
Jesuit and the Huron dwelt there together :—
“Tn the year 1634, three Jesuit priests, Fathers Brabeuf, Daniel, and
Davort, went as missionaries to the Huron village ‘ Thouatere,’ to which
they gave the name of St Joseph, and which corresponded nearly with
the village of Cold Water. In the year 1644, a superior-general of the
Jesuit mission among the Hurons is mentioned, who resided at St Marie,
the metropolis, as it is called, of the district, and from which missionaries
were sent, not only to the neighbouring villages, but even to other tribes
of Indians.
“This St Marie is well known to have been at the River Hye, where
the remains of a fortified enclosure, having some pretensions to an en-
gineered work, are still to be seen, and the spot of ground since recog-
nised by the above person, is held in great veneration by the priesthood,
it having been purchased within the last year, and presented to the Je-
suits for the purpose of erecting a chapel there.
“ In what is now called Sturgeon Bay was the village and Jesuit set-
tlement of St Ignaer, some remains of which are also still to be seen. In
96 Description of some Sepulchral Pits of Indian Origin.
Hogg Bay was the settlement of St Louis; the former is spoken of as
surrounded with palisades and entrenchments, and it is likely that they
were all fortified in some way.
‘¢ During the years 1648-9, the Mohawks extended their conquests to
these settlements, surprised each in succession, with the exception of St
Marie, massacred all the inhabitants they found in them, and tortured
the priests, among whom are mentioned Jean de Brabeuf and Gabriel
Lallemand. (It is said that the head of the former is still preserved in
Quebec by the Jesuits with great veneration.) A great number of hu-
man beings perished in these massacres; for the Huron tribe then num-
bered from forty to fifty thousand, and the villages are said to have been
of considerable size.”
Besides these, three other villages, St Jean Batisti, St Matthew,
and St Michel, are noticed by the same author. The first was de-
stroyed, the others joined the Mohawks. ‘Their exact situations are
not recorded.
“ The settlement of St Marie was the last to yield. It was not de-
stroyed, but the inhabitants becoming straitened for provisions, and in
constant terror of their enemies, deserted it, and went, in the year 1649,
to the island of St Joseph, which is mentioned as being not far from the
mainland. Here they built a large village of one hundred houses, and
the priests are said to have baptized three thousand people. St Joseph,
in the old maps, corresponds to one of the Christian islands; and it is
likely, or even certain, that they received that name from the above cir-
cumstance.
“ On this island are the remains of a quadrangular enclosure, of which
the walls, still eight or nine feet high, remain in good preservation.
No signs, however, of the original clearing are to be seen, and some of
the trees growing within it are of the largest forest growth. It is situ-
ate about fifty yards from the beach of a large sandy bay on the south
side of the island, and there can be little doubt of its having been built
by the Indians, under the directions of the Jesuit priests, for a tempo-
rary protection against their persevering enemy.
« At the island of St Joseph the Hurons suffered from want of food ;
and so straitened were they for provisions, that mothers exhumed their
children and devoured them. Still pursued by the Mohawks, from this
place they dispersed in all directions. Some were drowned while at-
tempting to cross the ice to the mainland; some concealed themselves in
the woods, or dispersed among the neighbouring tribes; some went to
the Menitoulin island; others to the States; and the last remnant ac-
companied their priests down the Ottawa to Quebec, where they formed
the settlement of Lorette.”
The mode of disposing of their dead, in use among many tribes of
Indians of that time which was just now referred to, is thus de-
cribed by the same author :—
“ This grand ceremony, the most curious and celebrated of all con-
nected with Indian religion,’ as he calls it, “‘ took place every eight
ete thse
Description of some Seputchral Pits of Indian Origin. 97
years, among some tribes, every ten years among the Hurons and
the Troquois. It was called the ‘ Fete des Morts, or the ‘ Festin des
Ames.’ It commenced by the appointment of a place where they should
meet. They then chose a king of the fete, whose duty it was to arrange
everything, and send invitations to the neighbouring villages. The ap-
pointed day arrived, all the Indians assembled and went in procession
two and two to the cemetery. In some tribes of stationary habits, the
cemetery was a regular burial-ground outside the village. Some buried
their dead at the foot of a tree, and others suspended them on a scaffold
to dry; this last was a customary proceeding among them when absent
from home on a hunting excursion, so that on their return they might
more conveniently carry the body with them.
“ Arrived at the cemetery, they proceeded to search for the bodies;
they then waited for some time to consider in silence a spectacle so ca-
pable of furnishing serious reflections. The women first interrupted the
silence by cries of lamentation, which increased the feeling of horror
with which each person seemed overcome. They then used to take the
bodies, arrange the separate and dry bones, and place them in packets to
carry on their shoulders. If any of the bodies were not entirely decom-
posed, they separated the flesh, washed them, and enclosed them in new
beaver-skins. They then returned in the same procession they came in
to the village, and each deposited his burden in his ‘ laban.’ During the
procession the women used to continue their lamentations, and the men
to testify the same marks of grief as on the day of death; and this second
act was followed by a feast in each house in honour of the dead of the
family. The following days were considered public days—spent as days
of interment, in dancing, games, and combats, at which prizes were be-
stowed. From time to time they uttered certain cries, which they called
‘ les cris des ames.’ They made presents to strangers, and received pre-
sents from them. These strangers sometimes came 150 leagues. They
also took advantage of this occasion to treat on public affairs, or elect a
chief. Everything used to pass with order, decency, and moderation ;
and every one seemed overcome with sentiments suitable to the occasion.
Everything, even the dances and songs, used to breathe grief in some
Way, and every one to be so overcome with melancholy, that the most in-
different spectator would have been touched by the sight. After some
days they all went in procession to a grand council-room fitted for the
oceasion. ‘They there suspended against the walls the bones and bodies
in the same state as they had taken them from the cemetery, and placed
there the presents intended for the dead. If among the relics there hap-
pened to be those of a chief, his successor used to give a great feast in
his name. In some places the bodies were paraded from village to vil-
lage, and received everywhere with great demonstration of grief and
tenderness, and everywhere presents were given them. ‘They then took
them to the place destined to be their final resting-place. All these ce-
remonies were accompanied with music, both instrumental and vocal, to
which each marched in cadence.
“The last and common place of burial used to be a large pit (fosu),
which was lined with the finest skins, and anything which they considered
valuable. The presents destined for the dead were placed on one side,
and when the procession arrived, each family arranged itself on a sort of
scaffold, erected round the pit ; and, as soon as the bodies were deposited,
VOlL. ¥LV. NO. LXXXIX.—JULY 1848. G
y
98 Description of some Sepulchral Pits of Indian Origin.
the women recommenced to cry and lament. Then all the assistants used
to descend into the pit, and each person to take a handful of earth, which
he carefully preserved, and this earth was supposed to bring them success
at play. The bodies and bones were arranged in order, and covered with
new furs and bark, over which was placed stones, wood, and earth. Each
person then returned to his home, but the women used to go back, from
day to day, with some sagamite.”
Here, then, there can be little doubt, is an explanation of the
-origin of some of these sepulchral pits ; it can hardly be said of all
of them, owing to some difference in their character, the peculiarity
of their contents, and their apparent inconsistency with the ideas of
Indians on the subject of death. In the ceremonies first mentioned
there is no notice taken of the burial of cooking utensils with the
dead, though they were stpplied with food by the women, who placed
it near the grave. The utensils which have been found in some of
the pits must have been highly valuable, very difficult to procure, and
far too useful to the living to be given to the dead merely as presents,
and must have been placed there with some other motive.
Bearing in mind the destruction of human life that attended the
war of extermination just referred to, one cannot help in some degree
associating the two, and concluding that some of the pits were merely
depositories for the dead, formed in time of peace, in accordance with
the above custom ; others, more particularly those containing kettles,
were made or employed on an emergency, for the purpose of burying
the killed in battle, and secreting the property of the vanquished.
It is easy to imagine, that a party oppressed and threatened with
destruction by the Mohawks, unwilling to be encumbered in their
flight with such heavy articles, disposed of them in this manner,
trusting to their remaining thus concealed or protected from the
enemy, by being deposited with the dead, till they should be able to
return and recover them, Respect for the dead, being a feeling common
to nearly all tribes of Indians, would hinder even their fierce enemies
from disturbing them.
That the kettles which were found in pit No. 3, in the township
of Oro, were deposited there under some such circumstances, seems
more likely from the fact of their having been previously rendered
unserviceable ; thus proving almost to a certainty that they were not
placed there for any purpose suggested by their ideas of the future
lot that attended their deceased friends, as a broken kettle would be
even less serviceable to them in their happy hunting-grounds than to
those they left behind.
The following is the authority for calling some of the beads found
in these pits by the term ‘‘ whampum,”’ and Charlevoix’s description
of the shells from which they have been made. The translation is
thought to be tolerably accurate, though one or two of the terms are
not easily expressed in English :—
“T have said that the ‘ porcelaines’ (whampum ?) of these countries are
a
Description of some Sepulchral Pits of Indian Origin. 99
made of shells. These are found on the shores of New England and
Virginia. They are hollow (caunclees), elongated, and rather pointed
without (oncelles), and pretty thick. The flesh of the fish contained in
these shells is not good to eat, but the inside is so beautifully smooth
(verni), and of such bright colours, that art can produce nothing like it.
When the Indians used to go naked, they made the same use of them that
our original parents did of fig-leaves. They also hang them round their
necks, as the most precious things they possess, and even at the present
day they form one of their greatest riches and finest ornaments ; in fact,
they value them as we do gold, silver, or jewels ; and on that, perhaps,
are more rational than we, inasmuch as they have only to stoop to pick
up treasures as real as our own.
“ There are two sorts, or to speak more properly, two different-coloured
shells, one white, the other violet. The first is most common, and per-
haps on that account less esteemed. The second seems to possess a finer
grain when worked. The brighter the colour the more valuable is the
shell considered. They make of both little cylindrical grains, which they
pierce and put on a string, and thus it is they make the ‘ branches et les
colurs de porcelaine.’ The ‘ branches’ are nothing but four or five
threads, or little strips of skin, about a foot long, threaded with grains of
the porcelaine. The ‘ coliers’ are a sort of band or ‘ diademes,’ formed of
the ‘ branches’ joined together by threads, which form a tissue of from
four to seven rows of grains of a proportionate length, which depends
on the importance of the affair under treaty, and the dignity of the per-
son to whom the whampum is presented. By the mixture of grains of
different colours, they form such figures and characters as serve to explain
the affairs which may be the subject of discussion. They sometimes paint
the grains; at all events, when the subject of war is implied, they used
ared whampum. These ‘coliers’ are preserved with care, as they not
only in part form the public treasure, but are also used as registers and
annals, which they are supposed to study who have charge of the public
records, which are deposited in the ‘ labans’ of the chief. When there
are in the village two chiefs of equal authority, they guard by turns the
archives and treasures during a night, which night, however, at present
is an entire year. It is only in affairs of importance that they negotiate
by means of ‘ coliers ;’ for the less important they make use of ‘ branches
de porcelaine,’ skins, blankets, main en paen, or meat, and similar things,
for all these form part of the public treasure.”
In applying to another tribe, too, for assistance in war, it was not
unusual among some nations to send a large shell, with an invitation
to drink the blood of their enemies.
This description of whampum applies to the cylindrical beads found
in No, 4 pit. The larger beads, too, which were found in pit No. 2,
are evidently made of shell, as the specimen will shew ; but it is
doubtful whether the circular ones, which appear to be by far the
most common, were made in the same manner. From their exact
roundness, and from the edge as well as surface of many of them
being glazed, it is probable they were of French manufacture.
Whampum is still worn as an ornament by some of the Indians of
Lake Huron, and consists chiefly of pieces of porcelain tube of various
colours,
100 Description of some Seputchral Pits of Indian Origin.
It is perhaps worthy of notice that, in the neighbourhood of some
of these sepulchral pits, other ancient signs of Indian existence are
still to be found. Within about half a mile of the first may be seen
a place where the earth has been thrown up, so as to form squares or
columns. These spots might be passed without notice, and the
mounds attributed to fallen trees ; but on examination, no traces of
timber or roots can be found, and persons familiar with the bush
consider them to be artificial They may be traced extending in a
line for a considerable distance. Below this, and following the course
of a tolerably wide stream for about a mile, is what the Canadians
of the neighbourhood call the “ Plum Garden.”” It is an alluvial
level, having the appearance of being at times flooded by the river,
abounding in wild plum and cherry trees, with a mixture of poplar.
They have given it this name under the idea that it has been cleared
before and planted with fruit trees (they think by the French),
though it is more likely that a peculiarity in the soil alone accounts
for the existence of so many of these trees. A settler in cutting a
tree here for some domestic purpose, not long since struck upon an
iron ring, which was deeply imbedded in its substance. Following
a small tributary of the river back to the rising ground, from this
place a spot may be seen quite bare of vegetation, somewhat elevated
and covered apparently with baked earth. Pieces of earthenware
are found here in great quantities, which makes it. likely that the
material was manufactured on this piece of ground, Stone and iron
axes, too, are often found in this neighbourhood.
Epw. W. Bawrtree, M.D.
Since the above was written, another pit has been examined
about eight miles from Penetanqueshene, and as far back in the forest,
having the same character as the other, but a little more interest
perhaps attached to it from the following appearances, which were -
noticed in its immediate vicinity. It is placed on a gentle elevation,
which has a descent to the south, and is level towards the north;
in the former direction is Nottagawara Bay, which is supposed to be
about four miles off; in the latter the small lake which was lately
noticed ; its distance from the last pit being, perhaps, about five
miles in a direct line across the lake. It is probably about the middle
of the township of Giny. Close by the side of it is another pit,
which is not circular but elongated, with a mound on each side. At
the brow of the hill, if it may be so called, and commencing about
20 yards from the pits, there is the appearance of a long ditch ex-
tending in a direction south-west ; another ditch about half of the
length of this meets it at right angles on the top of the rising ground,
and is continued a few yards beyond the point of junction; a third
ditch intersects the short one as shewn in the diagram.
The two first of these ditches form two sides of a parallelogram,
but there is no signs of an enclosure at the other sides where the
Description af some Sepulchral Pits of Indian Origin. 101
ground is low and becomes nearly level. The long one is about 75
paces in length, the other half that length, the former terminates
at a moderate sized gum-tree, the latter moves abruptly at an old
decayed birch. Their average depth is about a foot and half, some
of them being much deeper than others, though the whole line is dis-
tinctly marked.
On the north side of the shorter and upper ditch, several Indian’s
graves were found, not placed in any order, but scattered about at
various distances from each other. Three of these were examined
and found to contain human bones; one, in particular, contained an
entire skeleton in perfect preservation. Some pieces of charcoal were
found with the bones, but no weapons, vessels, or ornaments of any
kind,
The ditches just noticed had the appearance at first of being a
succession of these small pits or graves, particularly near the point
of junction of the tree where the depth is greatest. This part was
dug into with the idea that human bones would be found there also,
but none could be discovered, nor was there an appearance of any-
thing having been buried there ; and it seems certain that it had
been applied to some other purpose than a grave, though what this
may have been is rather difficult to determine. Had the enclosure
appeared complete, it is thought there would be little doubt of its
having formed the site of a fortified Indian village; and it appears
now it could hardly have been formed for protection, as the open
sides of the space are guarded by no natural formation of ground even.
Another conjecture is, that a temporary defence has been thrown
up against an approaching enemy. The open space may have been
filled up with fallen trees, a mode of defence often adopted by the
Hurons while encamped during war.
The small pits or graves just noticed have the same appearance as
those described at p. 19, and the finding the bones in these seems
satisfactorily to prove the conjecture there formed of their use to be
true. It may be remarked that the skull of the very perfect skeleton
spoken of was found placed upon pieces of bark.
The large pit was no doubt connected with the funeral ceremony
Charlevoix describes; and from the fact of finding skeletons in the
graves, it is not unreasonable to imagine that the neighbouring village
was hastily deserted or quickly depopulated, so that the full form of
burial had not been enacted with all thedead. It seemed to contain
very few relics besides the bones ; only one small conch-shell could
be found, and there were no traces of beads or crockery, which, to-
gether with the more decayed condition of the bones, seem to shew
that this pit is more ancient than any of the others. The bones
were covered with 8 or 4 feet of earth, which is more than is usually
found over them, giving the pit a less evident form than they gene-
rally have for want of the marginal ring which the ejected earth,
not having been all thrown back in most of them, produces,
Ce 5
General View of the mode of Formation of Iceland.
M. Sartorius von Waltershausen says :—In the history of
the development of our planet, there has doubtless been
a time in which Iceland did not exist. Where now volca-
noes, covered with solid glaciers, and mountains composed
of alternate beds of tuffa and of trap, rise above the regions
of the clouds, there formerly the ocean only existed. At the
bottom of the sea lay horizontal beds, formation above for-
mation, even up to the chalk and the tertiary formations,*
together with their organic remains.
By a gradual but unequal act of consolidation of the inte-
rior of the earth, while still in a state of igneous fusion, by
an irregular addition of new parts, in the act of solidifica-
tion to the inner side of the already rigid crust of the earth,
or by other circumstances lying altogether beyond our know-
ledge, there were caused in the bottom of the sea very slow
secular movements, upheavings and depressions, which pro-
duced, as a first result, waved rock-formations.
The re-action from within outwards gradually became
greater; a part of the bottom of the sea rose up in the form
of a plateau, preserving the horizontal character of its beds,
whilst another part, on the contrary, remained behind; great
flexures must consequently have taken place, and a bursting
of the crust became inevitable.
* An analogy with the geology of other countries, and certain observations
’ gender it probable that both chalk and tertiary rocks are found in a stratified
condition immediately beneath the neptunian formations of Iceland. That the
chalk may be found at no very great depth may be concluded from the fact that
common flints and fragments of slaty sandstone are to be found on the strand of
Ranfarharm, unless these had been carried thither by ice, currents, or other
causes. This sandstone very much resembles that of the Appenine formation
from the mountains of Linguagrossa and Castilione, the northern part of which
surrounds Aitna. The occurrence of tertiary formations in lower grounds
seems to be proved by the conchyliferous tuffas of different districts, which
contain the most recent organic remains. In the deeper invisible formations
one might, therefore, expect tertiary formations of an older kind in the various
transitions to the chalk. These, however, are only conjectures drawn from
the geognostic circumstances of other countries; we have nothing in the shape
of satisfactory direct observations.
General View of the Mode of Formation of Iceland. 103
The submarine volcanic activity now first begins; masses
of water are engulfed by larger or smaller rents, and, in the
deep, become converted into steam, which, in confined spaces:
exerts its immense elastic force. The wonderful display of
volcanic eruptions will now occur in exactly the same way
as is observed in our day in different seas. Through one or
even through several rents extending in a north-westerly
or north-easterly direction, but chiefly in the latter, there
will incessantly arise, in some favourable points, steam of an
elastic force of several hundred atmospheres, accompanied
by earthquakes, projecting into the air sea-water, together
with clouds of ashes and scorie, furnished by the volcanic
focus, and causing terror and destruction amongst the inha-
bitants of the ocean.
The heavier masses, volcanic bombs and coarser scoriz, at
first fall back around the orifice of the eruption, and are
soon scattered by currents along the bottom of the sea;
whilst the finer pulverised ashes, drifted by the wind in dif-
ferent directions, first reach the surface of the sea, by a
longer road through the air, and cover the bottom in a thin,
scarcely perceptible stratum. These coming in contact with
the tertiary strata, whilst in the act of progressive formation,
there arise those tuffacious marls which I have described in
my account of the tertiary formation of Val di Noto in
Sicily, and which are more or less largely impregnated
with volcanic ashes. Such formations can now be found
only where one or several submarine eruptions have occurred ;
in Iceland, where they are quite covered by later eruptions,
they are now no longer anywhere to be seen.
After this eruption of ashes has continued for days or
weeks, the lava begins to rise up in the fissures, and, as in
the neighbourhood of Militello, spreads by injection into the
lateral masses of the tertiary formations, and amongst the
newly-ejected ashes, or, as probably more rarely occurs,
even flows over the latter. After these processes, which
have caused an instantaneous uprising, hot vapours or fuma-
roles make their appearance along the rent, and then the
eruption ceases. At last, in the course of time, the ejected
ashes assume their submarine character, and are changed,
according to circumstances, either into amygdaloidal con-
104 General View of the Mode of Formation of Iceland.
glomerates, or into beds of palagonite.* This is the mode
of the origin of the first trap-formation, and of its co-ordi-
nate bed of tuffa.
After such a catastrophe, months, and probably whole
years elapsed, before a second similar eruption followed.
Then a new fissure, either in the neighbourhood of the
former, or at a greater distance from it, again broke open
the volcanic furnace. If the place of the second eruption is
sufficiently removed from the first, there will not be the
slightest communication between the two recent formations,
unless it be that the shower of ashes of the second erup-
tion has accidentally spread into the sphere of the former ;
if, on the other hand, the eruptive localities be at a small
distance from each other, the beds of tuffa come in contact ;
the newer overlaps the older; as also a new part of the
original bottom of the sea. There now follows a new sub-
marine palagonite and amygdaloidal formation, which in-
deed is similar to the former, except in a chronological point
of view. The veins, in so far as they belong to the same
system, proceed alongside each other in a parallel direction,
or cross each other under very acute angles; their lateral
ramifications again unite and cross each other in different
storeys, so that the mere fact of being above or below is
here no criterion as to the age of the formations.
While this secular rising of the land is going on, the se-
cond eruption also is followed by a new instantaneous rising.
After the lapse of some time, there occurs a third eruption,
which either stands quite isolated, or unites, in a manner si-
milar to that already described, with one or with both of the
former, and may receive into its tuffa fragments of the already
existing formations. A fourth eruption, and a fifth, and so
on, continually repeat the same process. Every time a new
bed of tuffa is formed, there arise new veins, new lateral ra-
mifications, and new instantaneous risings; the sea over the
localities of eruption becomes always less and less deep, un-
til, at last, the bottom begins to rise above the level of the
sea in one or in several islands.
Thus, have thousands of eruptions produced thousands of
* This rock forms the basis of those tuffas named in Iceland moberg-
General View of the Mode of Formation of Iceland. 105
different beds of trap, of palagonite, and of amygdaloidal tuffa,
and equally numerous instantaneous risings, and contributed,
during immense intervals of time, towards the formation of
the island of Iceland. From this mode of explanation, we
may understand how the innumerable varieties of dissimilar
trap and tuffa have arisen, how the later formations can con-
tain fragments of the former ones, and how the veins cross
certain beds of palagonite, without our being constrained to
the conclusion that a universal covering of palagonite forms
the base of the whole island, whilst we cannot comprehend
how this palagonite has itself arisen, and whence its materials
are derived.
After the beds of tuffa, together with the different trap
formations, had assumed a certain extension, the trachytic
rocks of the same kind broke out here and there into veins,
through the already extensive volcanic covering of the bot-
tom of the sea, in the very same way as the traps themselves
had done. These trachytic veins passed through the traps
and tuffas with which they met, and caused in them new in-
stantaneous risings. The trachytes were again followed by
other trap injections, which passed through them, raised them
up, and spread through them in vein-shaped lateral ramifica-
tions. Thus simple is the explanation of the phenomena
which we have formerly described among traps and trachytes,
and their mutual injections into each other. After this al-
ternate process had continued for many thousand years, Ice-
land had again received a new and considerable increase, and
it began to assume a greater size.
Plants gradually covered the surface of the island, the val-
leys became covered with grass and moss, and there were
also found extensive forests, which, as yet, had nought to
fear from the stroke of the axe. The smaller hills were not
yet covered with glaciers, and thus the climate, favoured by
the superior influence of the ocean, was milder than in our
days. Whole generations of trees arose and perished, they
were the silent witnesses of countless new eruptions, which
broke out, either whilst under the sea, or after the mainland
had been formed, accompanied by earthquakes, and by showers
of scoria, ashes, and incandescent lavas. The forests sank
106 General View of the Mode of Formation of Iceland.
under the might of the volcano, like Pompeii and Hercula-
neum, they were buried beneath showers of ashes, and some-
times sunk under the sea by secular movements, but they
afterwards again rose up. At present, their remains are fre-
quently found covered by huge mountain masses, and appear
as surturbrand in the masses of tuffa, and enable geologists
to discover a series of revolutions, in which one supplants
the other, but all of which have, more or less, contributed
their share towards the formation of the island.
From the northerly situation of Iceland, it could. not hap-
pen otherwise than that the sea should begin to freeze on the
shores of the very gradually increasing island, especially in
the Fiords, which now lie dry, in the form of narrow val-
leys, and that next spring, during the breaking up and drift-
ing of the ice, there should be formed those strie and po-
lished surfaces, which have been raised, by succeeding ris-
ings, to the height of two or three thousand feet, and which
are erroneously taken for glacial striz. At the time of the
first formation of Iceland, the formation of a glacier was quite
impossible; this first occurred in more recent times, after,
not merely individual points, but whole ranges of mountains
had reached a height far above the snow-line.
That the glaciers descend from the snow-line into lower
grounds is a known fact; here nature herself fixes their
boundary, their advance and retreat take place within mo-
derate limits, and are determined, partly by the configuration
of the rocks, and partly by the climate.
The more Iceland rose out of the sea, so much the more
were its plateaux and its mountains enlarged, and, along the
valleys, rivulets and rivers now flowed. They began to cut
through the traps and tuffas, carrying along the disintegrated
rocks or debris, and depositing them in the shape of alluvium,
in the hollows, in the valleys, in the fiords, and on the sea-
shore. The volcanic sand is particularly well adapted for
this. Through it arise, in a special manner, at the foot of the
southern volcanoes, those horizontal, though more frequently
slightly upraised promontories, called the Sandr or Oeriifen.
In those parts where alluvium accumulates in the valleys,
and the rivers have only a slight fall, there appear, as in the
General View of the Mode of Formation of Iceland. 107 ©
valleys of the Alps, in the Pinzgan and in the Vallais, exten-
sive peat-formations, frequently accompanied with bog iron-
ore, and boggy marshes, which the traveller in Iceland soon
comes to know rather too well.
The action of the volcanoes still continues, in our day, as
in former times: showers of ashes and streams of lava destroy
the organic creation, the fumaroles decompose the rocks, and
the Geysers and Strokkr hurl forth, from their orifices, their
jets of boiling-water mixed with steam. As it has been going
on for thousands of years, so will it still continue for thou-
sands of years to come, until the thickness of the outer crust
of the earth opposes unsurmountable obstacles to the pres-
sure from within; the mountains of Iceland will still slowly
increase, and its coasts gradually become changed.
Such, I think, is the probable mode of origin of this, in
many respects, remarkable island.
My theory has not, if I may be permitted so to speak, been
caught up at random, but is founded on manifold and, I be-
lieve, careful observations. *
1. On the Cause of the recent Oscillation of the Waters in the
Lake Ontario. 2. An account of the extraordinary Agita-
tion of the Sea in Cornwall and Devon, on Sunday the 23d
May 1847. 3. An Account of four Whirlwinds which passed
through St Just, on the 12th of December 1846. 4. On the
rapid Diminution of the Sand-bank in Mounts Bay. By
RICHARD EDMONDS, Jun., Esq.
1. On the Cause of the recent Oscillation of the Waters in Lake
Ontario.t
“On 20th September 1845, was witnessed a singular phenomenon on Lake
Ontario. In the afternoon, the waters suddenly moved, in a mass, out of the
rivers, bays, coves, harbours, &c., lowering the water to different depths in dif-
ferent places. In 10 or 12 minutes the waters returned and rose toa higher
level than they had before. This oscillation, or efflux and reflux, was repeated
7 Er
* Phyisch-Geographische Skizze von Island.
t Penzance, Nat. Hist. and Antiq. Society’s Report for 1847.
108 On the Oscillation of the Waters in Lake Ontario.
at several times at about the same interval of 8 or 12 minutes. At the mouth
of the Genesee river, 7 miles from the city, the water fell two feet below its
common level, and soon rose as much above it. At Oswego, 70 miles cast of this,
a large body of logs moved out into the lake, to the great annoyance of their
owner, till he saw them soon returning to their previous losation. At Coburg,
a little west of the Genesee, and on the Canada side of the lake, and distant about
60 miles, the same fall and rise were observed to be repeated, the greatest being
a little before sunset, when the waters rose to their highest point, or about two
feet. At Port Hope, a few miles west of Coburg, the steam-boat, Princess
Royal, ran aground as she attempted to enter the harbour, so much had the
water lowered in the port.”—JAMESON’s Edinburgh Journal for April 1847,
p. 295.
Professor C. Dewey attributes the phenomenon above de-
scribed to a tornado “ about three-fourths of a mile wide,
which passed that afternoon over the” centre of the lake,
from SW. to NE., attended with waterspouts, “large hail,
and lightning and thunder.” ‘The power of this tornado
(he says) was probably sufficient to withdraw the waters
from the shores, so as to produce the efflux and reflux.” But
he does not explain how such an effect could have resulted
from such a cause ; nor does he say why the numerous tor-
nadoes and waterspouts which traverse the American lakes
do not generally occasion similar oscillations.
It seems to me much more probable, that during the tor-
nado, the upward shock of an earthquake occurred through-
out the basin of the lake, whereby a considerable body of
water resting on the inclined plain descending from its
shores, was driven towards its centre; thus producing the
effiux with which the oscillation commenced. It is no objec-
tion that such supposed shock was unperceived above the
level of the lake ; for shocks often “ follow the course of the
shore,’’* without rising to higher levels. Had the oscillation
begun everywhere with an énflua, it might be accounted for
by supposing that the sides of submerged rocks or shoals
near the centre of the basin had vibrated, in directions to-
wards its circumference, and that the shock, on reaching the -
margin of the lake, caused a quantity of the water there,
proportioned to the momentum of the shock, to rush up the
beach, in the same manner as a smart blow at the lower
* Humboldt’s Personal Narrative, pp. 222, 224,
Agitation of the Sea in Cornwall and Devon. 109
end of a line of marbles in a long tube causes the marble or
marbles at the higher end instantly to fly up, while all the
others remain stationary. A shock of this description is
attended with no upheaving—no subsidence—no displace-
ment of any portion of the ground, but is a mere vibration
transmitted through the sea with as great velocity and by
the same laws as through a solid budy. Now, if a shock or
rapid vibration of the deep bed of the ocean can, when trans-
mitted vertically, strike a ship with such violence as to make
all on board believe she had suddenly struck on a rock—an
occurrence very frequent during earthquakes ; and if, as was
the case in 1755 with a ship 40 leagues west of St Vincent,
the concussion has been so great as to throw the men “a
foot and a half perpendicularly up from the deck,’+ surely
the same power, if ¢ransmitted obliquely, in the direction of a
shelving shore, would be sufficient to drive the marginal
water a considerable distance up the beach.
2. An Account of the extraordinary Agitation of the Sea in Corn-
wall and Devon, on Sunday the 23d of May 1847.
The extraordinary agitation of the sea along the southern
coast of Cornwall on the day above mentioned was greater,
and of longer continuance, than any that had previously oc-
curred during the last fifty years.
It was noticed in Mount’s Bay as early as 5 o’clock in the
morning, and continued with varying intensity throughout
the day. It attracted, however, most general attention about
5 o'clock in the afternoon, when the sea, near the time of
low-water, rushed into all the tidal harbours of the bay, to a
perpendicular height varying from about 3 to above 5 feet, and
then returned to its previous level, occupying about fifteen
or twenty minutes in this double movement. A similar influx
and reflux immediately succeeded, and the sea thus continued
to advance and retire until after midnight ; but at what hour
the rise and fall were greatest 1 have not been able to ascer-
tain. The motion resembled that of a very strong tide, or
t Lyell’s Geology, vol. ii. p. 241.
110 Agitation of the Sea in Cornwall and Devon.
rapid river, eddying and foaming in a most extraordinary
manner. Large boats, from which the tide had completely
receded, were again floated and left dry, while the bows of
those moored in deep water near Newlyn were, by the alter-
nating current, whirled every eight or ten minutes to oppo-
site points of the compass, the wind, although fresh, having
little or no influence upon them. Persons attempting to pass
the causeway leading from Marazion to St Michael’s Mount
were overtaken by the unexpected influx and narrowly escaped
being swept away. The sea all the day was quite smooth,
and apparently undisturbed except near the shore where the
agitation prevailed.
At Plymouth, during the whole or the greatest part of the
day, the sea, from the mouth of the Catwater to within Sut-
ton Pool, was strangely agitated by an almost constant flux
and reflux, although there was scarcely any wind. But in
the evening, especially from half 7 to 9 o’clock, the commo-
tion was still more alarming ; and the crews of the trawlers
were obliged to remain on board all night, as their vessels
were whirled in opposite directions by every change of the
current, and several of them damaged by running foul of one
another. The bores were the most formidable remembered
by the oldest inhabitant.
In Falmouth harbour and the Scilly Isles, similar oscilla-
tions occurred. But on the north coast, at least in St Ives
Bay, nothing unusual was remarked.
The cause of these phenomena I have endeavoured to ex-
plain in a former communication.
The temperature at Penzance on this day was much higher
_than it had been for the year, and the sun shone powerfully
until about three in the afternoon, when the wind, which had
been about SE., suddenly changed, and blew strong frem W.
or NW., with every appearance of an approaching thunder-
storm. Ley
*udy
your yy,
Axenaqeayy
Arenur ¢
‘waanyapny 4 Jo apnu suoywasasgg ywoorbojosoajapy fo sasdouliy
January, .
February,
March,
April, .
May,
June, .
Maly, |. <
August,
September
October,
November,
December,
a
Means,
1847.
January .
February
March
April .
May
June .
July
August
September
October .
November
December
Means
1846
1845
1844
Meteorology of Whitehaven.
Mean Air-
Tempera-
ture.
37°62
38:40
44-88
46°71
56-46
60:80
66:22
62:11
55-64
53-95
50°17
Hygrometers.*
Mean Wet-
Bulb,
Mean Dew- | Mean Dew-
-Point, Point,
deduced. observed.
: 33°16
31-62
36-06
of 39-04
48:95
51-25
57°40
53°84
47°75
47-50
45°70
36-90
375
Mean Coni-
plement of
Dew-Point.
4-46
678
8°82
7-67
7-86
9-60
8-84
8:25
8-39
6-42
4-45
4-49
48:66 |
7:17
48°56 Mean of, observed from May.
Mean from
Daily Ob-
|Servations.
th 4
6 6°59
18 8°83
28 6°86
6-54
511
4:70
4:76
4:96
6°13
5-69
-|Min.| Day.
0
or or or
Seco ge gira lsd rally
In Stn’s Rays.
Max.
Grass.
44°10
52°32
53°5
89°60
94:00
102°10
94°50
76:90
65°40
56°60
46°30
* These observations were made twice daily, viz. at 10» 30™ a.M.and 35p.mM. In
deducing the dew-point from the wet and dry bulb thermometer, Mr Gluisher’s va-
The dew-point apparatus, and wet and
” dry bulb thermometers, have both been compared with Mr Gluisher’s standard.
+ In 1846, the naked thermometers were placed on a flat piece of cork, in cloudy
and wet weather, but on clear nights they were exposed in wicker baskets, contain-
luable hygrometrical tables have been used.
ing a layer of raw wool.
In 1847 the cork only was used.
376 Meteorology of Whitehaven.
Remarks on the year 1847.
January.—A fine, dry month, but with little sun, and a stagnant at-
mosphere. Mean temperature 2°02 under the average.
February.—Similar to January. Mean temperature 2°°71 under the
average. The complement of the dew-point is 2°°31 above the mean,
shewing a very dry state of the atmosphere for the season. The evapo-
ration, and also the rain, are both below an average quantity.
On the night of the 4th, the radiation was 21°, being the greatest I
have recorded ; the night was not particularly clear, but very calm.
On the night between the 11th and 12th, the thermometer at Green-
wich fell to 6°, or 18°°5 below the minimum at Whitehaven. At 3 p.m.
on the 7th, the dew-point had fallen 8° since morning, and 26° in the
preceding twenty-four hours.
March.—A dull but dry month, and free from the piercing winds which
usually characterise it. The sun has been very sparing of his beams,
and a perfectly clear day or night has long been a rarity. Mean tempe-
rature 1°80 above the average. The air has been unusually dry, the
complement of the dew-point being 2°°71 above the mean of the five pre-
vious years. The evaporation is the same as the average, and it exceeds
the fall of rain by 0°45 inch.
The average quantity of rain during the first quarter of the year (Jan.
to March) is 11°79 inches; but the fall in that period of 1847 only
amounts to 5°07 inches. Notwithstanding the deficiency of rain, we have
had little sun, and the sky has been generally overcast during the nights,
and most unfavourable for astronomical observations. The mean tempe-
rature of the quarter ending March 31 is 0°'97 under the average of ten
years. The mortality in this town is 100 per cent., and for the whole
Union it is 97 per cent. above the average of the corresponding quarter
in the previous eight years. According to the Registrar-General’s re-
port, the deaths throughout England are 6035 above the corrected ave-
rage for the quarter.
April.—The coldest April in the last fourteen years, except in 1837
and 1838; the mean temperature is 2°°87 under the average.
On the 1st April, at Liverpool, heavy snow fell from 1 a.m. to 8 p.M.,
and, though much melted as it fell, the ground was covered to the depth
of four inches, and on the roofs of the houses it was eight inches deep,
So dark and gloomy was the atmosphere, that artificial light was rendered
necessary at mid-day. At Whitehaven we had some snow in the morn-
ing, amounting to ‘035 inch, but it did not lie at all upon the ground ;
the afternoon and evening were fine and sunny.
Liverpool is frequently visited with heavy falls of snow, when we have
little or none as this place. Indeed, Whitehaven seems to be singularly
exempted from snow-storms, particularly of late years.
May.—The month of May, usually the driest of the twelve, has, this
year, been damp and wet; the mean quantity of rain is 1°82 inch; but
in May 1847, the fall is 3-42 inches, or about an inch and a half above
the average. The mean temperature is 0°'48 above the average, and the
mean complement of the dew-point is 1°66 below the mean ; and in con-
sequence of the unusual dampness of the air, the evaporation is also be-
low the average quantity by 1°38 inch.
a ————< = -—
Meteorology of Whitehaven. 377
On the night of the 10th-11th, there occurred a violent thunder-storm,
attended with some peculiar circumstances. The electrical disturbance
appears to have been confined to the immediate neighbourhood of this
lace.
, Cuckoo heard, and first swallow seen at Whitehaven on the 6th, much
later than usual. In the country, these spring visitors made their ap-
pearance towards the latter end of April.
Heard the corncrake about the 20th.
June.—A fine dry, month; the mean temperature is 1°21 under the
average. The difference of the dew-point and air temperatures, and the
amount of evaporation, are nearly coincident with their respective ave-
rages. The radiation of heat from the earth’s surface at night, has been
greatly impeded by the intervention of clouds, both in this and in the
previous month; in May and June 1846, the mean radiation is 8°-52
and 9°:07; in the corresponding months of 1847 it is represented respec-
tively by 5°11 and 4°70. Hail showers on 8th and 14th.
The mean temperature of the quarter ending June 30th is 1°-20 under
the average of 10 years. The mortality in this town is 80 per cent.,
and for the whole Union it is 79 per cent., above the average for the
quarter in the previous eight years.
The deaths throughout England are 6745 above the corrected quar-
terly average.
July.—The driest and the hottest July I have recorded. The mean
temperature is 2°74 above the average. The fall of rain slightly exceeds
three-fourths of an inch, and the quantity received by the steeple-gauge,
at 80 feet above the ground, is rather more than was measured in the
garden, near the surface—a somewhat rare exception to the general law
of condensation. ‘The evaporation and the complement of the dew-point
are both above the average, the former by -595 inch, the latter by 1°14.
The amount of terrestrial radiation is small, being exactly the same as
in the corresponding month of last year, when 9 inches of rain fell;
hence we may infer that the earth has retained through the night most
of the heat absorbed during the day.
August.— Mean temperature 1°10 under the average. The comple-
ment of the dew-point and the evaporation are both above the average
for the month; the former by 1°-86, and the latter by 0°51 inch.
Hail on the 8th and 23d. Multitudes of shooting stars and several
bright meteors, almost every clear night between the 2d and 20th. The
grain harvest commenced in this neighbourhood about the 17th. The
yield was good, and the crops secured in excellent condition.
September.—Mean temperature 2°°87 under the average. The com-
plement of the dew-point is 1°°67 above the average, and the evapora-
is 0°56 under the mean quantity. Fine aurore on the 26th and 29th.
A magnificent arch begirt the sky from W. to E. on the evening of the
26th.
The mean temperature of the quarter ending September 30th is 0°°41
under the average; the complement of the dew-point and the evapora-
tion are both above the average, the former by 1°°55, the latter by 0°18
inch.
The deaths throughout the Union during the quarter, exceed the average
number by 87, or 54 per cent. ; in the town of Whitehaven, the mortality
is 45 per cent. above the quarterly average.
378 Meteorology of Whitehaven.
The deaths throughout England are more, by 7007, than the corrected
quarterly average from 1838 to 1846.
October.—Mild, with occasional heavy rains. ‘The mean temperature
and complement of the dew-point are both in excess, the former by 1°11,
the latter by 0°87.
About 7 p.m. on the evening of the 12th, there was a splendid auroral
arch, stretching quite across the sky, and passing nearly through the
zenith. It disappeared in a few minutes after it was first noticed.
There was an aurora with streamers on the following evening.
The large eclipse of the sun, which took place on the morning of the
9th, was very favourably seen from this place, though, from the clouded
state of the atmosphere, it was invisible to most parts of England. Some
particulars of this eclipse, as observed at Whitehaven, may be found in
the “« Whitehaven Herald” of the 16th, and the “ Illustrated London
News” of the 23d of the month.
November.—A very mild but excessively wet month. The mean tem-
perature is 2°69 in excess,
At Cockermouth, on the night of the 26th, there were several loud
peals of thunder, with heavy rain and hailstones of a very large size.
‘An observer near Cockermouth informs me, that from 8" 30™ to 11"
p.M., and subsequently, a magnificent aurora extended over nearly 90°
of the northern horizon, at one time displaying two concentric arches.
The centre of the higher arch was elevated about 25° or 30°, and was
bounded internally by clouds of the densest black, which contrasted
beautifully with the brilliant light above.
December.—Very wet to the 19th; afterwards fair to the end, except
a heavy fall of snow (yielding 0'858 of water) on the 29th. Tempera-
ture 0°85 below the average.
On the 6th, the barometer fell to 28°01, being ;65ths of an inch higher
than the reading on January 13, 1843. It was followed by a heavy
gale and a great quantity of hail, the storm commencing after the mer-
cury had begun to rise.
The mean temperature of the quarter ending December 31st is 1°
above the average. The complement of the dew-point is also 1°67 in
excess.
The deaths throughout the Union during the quarter are 247, or 40
per cent. nearly above the average of 8 years, which is 178.
In the town only, the number is 116, or 27 per cent, above the average,
which is 91. In the corresponding quarter of 1846, the deaths in the
Union were 310, and in the town 158, whilst in 1845 the numbers were
only 156 and 73 respectively.. According to the Registrar-General’s Re-
port, the excess of deaths throughout England in this quarter above the
caleulated average, is 11,376; in 1845 they were 5670 below the
average.
The chief peculiarity connected with the meteorology of the past
year, is the very unequal distribution of rain in the different seasons ;—
the excessive wetness of the fourth, and the remarkable dryness of the
first three quarters. In the first quarter, we had 5:070 inches; in the
second 8'900 inches; in the third 9°010 inches, and in the last quarter
19-941 inches. From the 1st of January to the 30th September, there
fell 22°98 inches, and from the 1st October to the 31st December 19-941
Meteorology of Whitehaven. 379
inches, so that the first nine months only received three inches more
rain than the last three months of the year.
In the Lake Districts the disproportion was still greater.
In 1847, there have been five days in which the quantity of rain was
between 1 and 2 inches, viz., one day in August, one in September, two
in November, and one in December; and one day (in November) in
which the fall exceeded 2 inches.
The mean temperature of 1847 is ;4;ths of a degree below the average
for this place.
The driest days in 1847 were the 9th and 15th of March ; on the 9th,
the difference between the dew-point and air temperature was 21°; on
the 15th at 10 a.m., it was 21°, and at 3 p.m. 27°.
In the past year, there have been 534 deaths in the town of White-
haven, the average number in the previous 8 years being 331; the mor-
tality is consequently 62 per cent. in excess. In 1839, the deaths in
this town were 313; in 1840, 260; in 1841, 316; in 1842, 303; in
ag 337; in 1844, 309; in 1845, 287; in 1846, 522; and in 1847,
4,
This summary, which I have just made from authentic data in my
possession, shews a frighful inerease in the mortality of the town of
Whitehaven during the last two years; it must be borne in mind, how-
ever, that this excess has been general over the kingdom, though pro-
bably not to an equal extent.
Joun Fietcuer Mitier.
WHITEHAVEN, August 1848.
On the Asteriade found Fossil in British Strata. By EDWARD
Forsss, Esq., F.R.S., Professor of Botany in King’s Col-
lege, London, Paleontologist to the Geological Survey of
the United Kingdom.
During the course of the researches of the Geological Survey of
Britain many remarkable fossil Radiata have been brought to light,
some of which involve important considerations, both geological and
zoological. Not long ago, and until within a very few years past, it
was supposed that true star-fishes were animals whose appearance in
the earth’s seas dated from the oolitic period at earliest. The few fossil
species on record had been observed in secondary formations. Their
relations with existing forms were uninvestigated, and, indeed, the
scientific study of the latter had scarcely commenced. Within the
last ten years, however, the attention of zoologists has been strongly
directed towards the Echinodermata, and numerous memoirs, both
physiological and systematic, have been published upon this interest-
ing order of Radiata.
The structure, habits, and sources of character, generic and speci-
380 Professor Edwards Forbes on the Asteriade
fic, of the existing star-fishes having been lately extensively investi-
gated, and a good basis for comparison attained, it is time to inquire
into the history and generic relations of their fossil allies; the more
so, as notices of not a few species are scattered through geological
memoirs. Numerous undescribed species exist in collections, and
good specimens of many recorded forms, of which slight fragments
only have been described or figured. The inquiry is one of great
interest ; for through it we may hope to attain a knowledge of the
earliest features of this important section of radiated animals; to as-
certain whether the order, as a whole, has undergone material changes
during its progression in time ; whether the earlier forms were rudi-
mentary or equal in perfection of organization with those now living ;
and whether we can obtain information respecting the conditions of
climate or depth under which they lived in the several geological
epochs. The last point is especially important ; for as we know that
the forms of existing Echinodermata have a distribution highly cha-
racteristic of regions and conditions in space, we may hope to find an
analogical distribution of the fossil species in time. Whilst a great
part of the extinct zoophyte closely approximate existing types, a
large proportion even of the paleozoic species bearing no small re-
semblance to existing forms the majority of the higher Radiata
which have been preserved exhibit generic, and even sectional differ-
ences, separating them from their living allies. These differences
are especially conspicuous among the Echinide and Crinoidee. The
older genera, and even tribes of the last-named group, became ex-
tinct before the epoch of the secondary rocks commenced ; and in ex-
isting seas there are but few members of the crinoidal type. The
group is essentially chronomorphic. The Echinide are doubtfully
indicated as yet among paleozoic forms ; but those of secondary for-
mations frequently belong to genera which have become extinct, and
the development of which had an evident relation to points in time ;
for we find groupes of species, presenting peculiar combinations of
characters, limited entirely to a few consecutive formations. This
centralization of a number of generic types in time among the Echi-
nid, whilst the members of others range indifferently through vast
epochs, is exactly analogous to the present distribution of sea-urchins,
many of the genera of which are confined to limited zoological pro-
vinces, whilst the members of others are distributed all over the
world.
The knowledge of these facts, and an erroneous and too hasty in-
terpretation of them, led paleontologists to believe that the distribu-
tion of the star-fishes in time was very limited, and had relation only
to recent epochs. They were supposed to have been entirely absent
during the palzozoic epoch, an absence which, if true, would have
formed one among the many remarkable negative characters which
it apparently presents; but which, it seems to me, have been laid
far too much stress upon, when we consider the slight acquaintance
found fossil in British Strata. 381
we have as yet with comparative geology. But a small portion of
the earth’s surface has as yet been examined with that minuteness
which the palzontologist should require before he infers sweeping
conclusions from negative facts. As well might the zoologist or bo-
tanist, having thoroughly explored one province, or even a con-
nected group of provinces of distribution, draw from his researches
general conclusions respecting the presence or absence of like beings
with those which he has examined on other parts of the earth’s sur-
face before they had been explored by competent persons. If many
distant points be thoroughly examined, we may hope to come to
tolerably correct inferences respecting the phenomena .of life in the
interspaces, and this is as true in time-investigations as in space-in-
vestigations ; but in geology, until lately, our knowlege of the fossil
faunas and floras of distant regions has been, and indeed is still, ex-
tremely limited; for the parts of the world best examined, viz.,
Europe and North America, have evidently, in a natural history
point of view, been portions of one province only ; vast, no doubt,
but not vaster than some existing provinces of distribution recognised
by those naturalists who have studied that important subject. Yet,
this not having been borne in mind, speculations, presented as infer-
ences from extensive series of facts, respecting the universal diffusion
of species during the older epochs of the world’s history; the evidence
they afforded of a universal climate; the progression of organisation
in time ; the development of higher forms from lower; the absence
of great classes of organised beings ; and the causes of that absence
dependent on the existence of peculiar atmospheric or terrestrial con-
ditions, have been rife in geology; and though probably partially
true, yet, as the logical process by which many of them were ar-
rived at is not quite clear, whilst the premises were often evidently
insufficient, have led many able men, unacquainted with the certain-
ties of our science, too hastily to regard geology as in great part a
philosophical romance.
When we consider the enormous lapse of time which has rolled
away since the earlier formations were deposited ; the changes which
have taken place on the earth’s surface during the interval; the
wear and tear which the hardest rocks must have undergone during
their upheavals and depressions ; the little that is preserved to us of
sea-beds which have been extensively exposed during comparatively
recent times,—the wonder is, not that we can find no traces of the
former existence of numerous tribes of creatures, members of which
now live upon our earth and its seas; but that so many types of
forms, simulating existing organisms, should be preserved at all as
evidences of the most ancient past. It is from positive, and not from
negative evidences, then, that the paleontologist should draw his con-
clusions, unless when well-established laws, arrived at by naturalists
from the careful study of the full and unmutilated chapter of the
VOL. XLV. NO. XC.—OCTOBER 1848. 2c
,
382 Professor Edward Forbes on the Asteriade
present, have evidently so strong a relationship of analogy with the
phenomena of the past, as to warrant their safe application.
Organic remains make their first appearance in British strata
abundantly, and in considerable variety, about the parallel of the
Bala limestone, and sandstones and shales associated with it. Much
below that geological horizon, fossils occur, the oldest known forms
appearing to be Lingule, members of a genus of brachiopodous mol-
luses, still represented by species which do not vary much in form
from their most ancient allies and predecessors. But before the- de-
position of the Bala rocks, the evidences of life within our own area
are comparatively scant. In America, corresponding paleeozoic phe-
nomena have been described.
The first traces of the appearance of Asteriadz, occur in rocks of
the Bala series, or even lower in the geological scale. They were
first noticed by Professor Sedgwick, who found them in beds of cor-
responding age in Cumberland, where they were also observed by Mr
Daniel Sharpe. The researches of the Geological Survey have brought
to light similar fossils in the Bala rocks, near Bala, and in the ashy
slates at Drumcannon, near Waterford, where they were found by
Captain James. These latter beds probably correspond in age with
the former. It is very remarkable that forms of star-fishes strikingly
similar, have been discovered in the Lower Silurian strata of the
United States.
The Cumberland, Welsh, and Irish star-fishes all belong to one
genus. After a very careful examination of all the specimens I have
been able to procure (and, through the kindness of Professor Sedg-
wick and Mr D. Sharpe, every facility has been afforded), I am in-
duced to refer them to the existing genus Uraster (Asteracanthion
of Miiller and Troschel), members of which are at the present day
the most abundant star-fishes in the British seas, and throughout
the North Atlantic. The general aspect of the palzeozoic star-fishes
must have been strikingly similar to that of the Urasterie now
living. Indeed, impressions taken from the latter in clay would so
closely resemble those which we find in ancient rocks, that the cri-
tical eye of a naturalist would be required for the definition of their
specific distinctness. Nor does this arise through the obscurity or
imperfections of such impressions, for the external characters, so far
as contour and sculpture of surface, and even many points of struc-
ture, are very completely indicated in them, rude as they may seem.
As yet, with the exception of the instances already referred to,
only one other instance of the discovery of a palzeozoic asteriad has
come to my knowledge, namely, that of a well-preserved species, ap-
parently also belonging to the genus Uraster, by M. Thorent, in the
“Terrains Anthraxiferes,” of the department of Aisne. It is pro-
bable, however, that the progress of research will bring many more
to light. In the older secondary strata, not a few have been found,
both in Britain and abroad. A doubtful form (Asterias obtusa) has
found Fossil in British Strata. 383
been figured by Goldfuss from the Muschelkalk, who has also made
known a true Asterias, or Astropecten, from the lias of Wurtemberg.
Several species of Astropecten have been observed in the oolites of
Yorkshire; and similar forms in corresponding beds in Germany,
where Urasterie have also been found. A single example of a
fossil Luidia has been made known from the marlstone of Yorkshire,
and a Goniaster from oolitic beds in Germany. In the upper se-
condary (cretaceous) rocks, numerous fossil star-fishes have occurred,
especially of the genus Goniaster. Representatives of Oreaster, As-
tropecten, Asterina, and Arthraster (n. g.) are also present in the
eretaceous series. The few older tertiary star-fishes with which we
are acquainted, belong to the genus Astropecten. Arguing from the
analogy of their associates, there can be no question that star-fishes
were abundant in the tertiary seas. Yet how very rare are the traces
of their existence! In the later tertiary strata, the only evidence
as yet procured of their presence during the deposition of those beds
consists in a few minute fragmentary ossicula of Urasterie. Yet,
when we consider the gregarious habits of those star-fishes, espe-
cially of the species to which the ossicula preserved in all probability
belonged, it is very wonderful to mark the almost total disappear-
ance of their exuvize; and the fact should serve as a caution to those
who would unhesitatingly infer the absence of a tribe of organised
beings, especially of such as present few facilities for preservation,
from the absence of their fossil remains. Even now, when dredg-
ing, we very rarely bring up any remains of dead star-fishes, whilst
the living animals are not only present in the locality explored, but
often so abundant as to fill the bag of the dredge, to the exclusion of
all other creatures.
We refer our readers to the concluding part of Professor E. For-
bes’s interesting memoir, from which the above is extracted, for de-
scriptions of the fossil Asteriadee. (Vide vol. ii. of Memoirs of the
Geological Survey of Great Britain, p. 461.)
Miscellaneous Observations on the Centipede (Scolopendra mor-
sitans), and on the large Land Snail of the West Indies
(Helix oblonga). By Joun Davy, M.D., F.R.S. London
and Edinburgh; Inspector-General of Army Hospitals.
Communicated by the Author.
In a former communication, published in the Philosophical
Journal, I gave an account of the urinary excretion of the
centipede, how it consisted chiefly of lithate of ammonia.
Then, I had obtained no certain information respecting its
384 Dr Davy’s Observations on the Centipede.
food. Since, I have had an opportunity of observing one in
the act of eating, and of ascertaining that its food is insects.
The one I allude to was caught without being injured, and
confined under a glass vessel, a common drinking-glass, in-
verted on a porcelain plate. It was under observation a
month, when it effected its escape. During the whole of. this
time it exhibited a voracious appetite. The first day of its
captivity it ate two house-flies ; and each day after, this num-
ber or more. One day it devoured nine. It ate the flies
piece-meal, leaving nothing but portions of the wings. So
intent was it on the act, that it did not relinquish its prey
even when somewhat roughly touched, appearing, when so
engaged, passive and indifferent to everything else. And
commonly after eating it seemed listless and disinclined to
move, almost as if torpid or asleep. The excrementitious mat-
ter it voided was abundant, not unlike that of small lizards,—
being in little cylindrical masses, in part nearly white, con-
sisting of lithate of ammonia, and in part of a darker hue,
the latter alvine, formed chiefly of the wings and other undi-
gested parts of the flies it had consumed. This centipede
weighed 24:46 grains (weighed in a thin glass tube). The
trial was made after it had been two days in my possession,
and when it had ate nine flies. The excrement voided in
the same time, after having become dry from exposure to the
air, weighed -44 of a grain. The larger portion of it was
lithate of ammonia, as it always was. It did not diminish
in quantity with the confinement of the centipede, but seemed
rather proportionally to increase,—being in accordance nearly
with the quantity of food used ; and it was observed that com-
monly after devouring a fly a small excrementitious mass
was discharged. Between the 12th and the 25th of July the
matter voided was found equal to 2°55 grains, weighed when
dry. ,
I am induced to give these particulars, thus minutely, for
two reasons,—one, the difficulty there is in procuring a cen-
tipede uninjured, so as to be fit for such observations as I
have made ; the other, on account of the observations them-
selves, denoting, as they seem to do, a great activity of the
digestive and assimilating power of the animal, and the rapid
Dr Davy’s Observations on the Centipede. 385
formation, and in abundant quantity, of lithate of ammo-
nia. This activity of functions, I believe, was connected with
the growth of the centipede; for at the end of the month it
appeared decidedly increased in size. Had it not escaped,
this would have been determined with precision by weigh-
ing.
The snail, which, in the heading of this notice I have called
the large snail of the West Indies, is, I believe, identical
with Helix oblonga of Linneus. It is very common in the
island of Tobago, less so in St Vincent, and is not met with
in Barbadoes. The specimens I have seen have been about
four inches in length, and about two in width. It burrows,
hiding itself under ground during the dry season. There,
too, it deposits its eggs. It appears abroad in damp nights,
and by day in rainy or showery weather. It is believed to
feed entirely on vegetables.
Its eggs, those I have seen, have been about two inches
long and about six-tenths of an inch in their short diameter.
They have a brittle, semi-transparent shell, which, I find, is
composed of carbonate of lime, with a little animal matter,
and a just perceptible trace of phosphate of lime. Their
contents, in their early stage, judging from one that I have
examined, are a viscid fluid of uniform colour, white, with a
just perceptible tinge of yellow. There was no appearance
of yolk. The white was found to be of specific gravity 1060,
carefully weighed. It was coagulated by heat, and was ren-
dered opaque by corrosive sublimate and nitric acid, much
in the same manner as the albumen ovi of the common fowl ;
but the coagulum was less firm,—yet, as firmed by heat, suf-
ficiently so, to bear the inversion of ,the vessel without its
flowing. .
The excrement which this snail voids is large in quantity,
in consolidated cylindrical masses,—casts seemingly of the
tube from whence they are discharged. What I have ex-
amined I have found to consist chiefly of two kinds of mat-
ter, viz., one, the chief portion, of a dark olive-green, formed
principally of the debris of the vegetable food, as was indi-
cated by its appearance under the microscope; the other,
almost white, soft when voided, of uniform appearance and
386 Dr Davy’s Observations on the Centipede. .
consistence, and, as seen under the microscope, composed of
globules chiefly mixed with a few epithelium scales. The
globules were about 3/55 of an inch in diameter. Acted on
by nitric acid and heat, I have found them to contain lithic
acid, which is probably in the form of lithate of ammonia,
and probably also combined with some animal matter. That
it is so combined, I infer both from the comparatively large
size of the globules, and from the purple colour, the result of
the action of the acid and heat, being less intense than in
the instance of pure lithate of ammonia similarly tested. A
third kind of matter is occasionally met with, of a grey colour
or nearly white, which, chemically examined, appears to con-
sist chiefly of earthy substances, carbonate of lime and sili-
ceous sand; and which, it may be inferred, has been taken
in with the food, either intentionally—instinctively, as the
like matter is swallowed by fowls to afford material for the
formation of the shell of the egg.—or accidentally, adhering
to what is eaten, still serving in part the same purpose.
This matter occurs mixed with the dark, olive-green intesti-
nal excrement. The white globular matter, containing lithic
acid, and which it may be concluded is a secretion of the
urinary kind, is not mixed with the intestinal matter, but is
merely attached to it, much in the same manner as in the
instance of the mixed excrement of the centipede ; but the
urinary part is in greatly smaller proportion, the secretion,
indeed, is in very minute quantity compared with the excre-
tion ; that is, the urinary with the alvine.
As it is probable, reasoning from analogy, that the excre-
ment of all snails and slugs is similar in composition, and
contains lithic acid, it may be inferred that their casts are
even more useful, considered as a natural manure, than has
commonly been supposed ; storing up nitrogen, in lithate of
ammonia, and by the slow decomposition of this compound,
restoring it, and affording an element of support for growing
plants, the nitrogen so stored up being an excess over that
required for the growth and sustenance of the animals, and
itself probably derived from vegetables.
As this large snail appeared to me a good subject for mak-
ing trials on its temperature, I instituted a few, the results
Dr Davy’s Observations on the Centipede. 387
of which I shall give. It may be premised that the two
snails, on which the observations were made, were brought
from Tobago to Barbadoes; had been several days fasting
(leaves were given them, which they did not eat), and that
they were kept under a glass vessel to which air had freely
access, in a well-ventilated room; and farther, that, at the
same time, their temperature was ascertained by introdu-
cing a delicate thermometer with a projecting bulb, so as to
be covered with their soft parts, the temperature of the air
of the room was likewise ascertained ; and also, except on
the first day, that of a bottle of water standing by, for com-
parison :—
Time of Temperature
Observation. of Airof Room. Of Water. Of one Snail. Of another.
July 27, 3° pM. 85: 85°25 85°
ah 93 P.M. 80° 81: 81°5
- 28,6 aM. ioe 80° 81: 81°25
i 33 P.M. 85° 85° 85°5 85°5
a 29,6 A.M. iB 80° 80°5 80°5
- 380, 34 P.M. 83: 82°75 83°25 83°25
These results seem to shew that these snails had a tem-
perature, commonly exceeding a little that of the atmosphere
in which they were.
The two snails were found equal in volume to 10 cubic
inches. On the second of August, they were put under a jar
of the capacity of 240 cubic inches, full of atmospheric air,
and water was poured on the stand so as to cut off all com-
munication with the atmosphere. In this moist air, moist in-
deed to perfect saturation, the snails the first day were very
active, in constant motion ; on the second day they were less
so; on the third day they were found dead. The air now on
examination was found to be largely vitiated with carbonic
acid gas. 32 cubic inches of this gas were absorbed by cream
of lime, leaving 198 cubic inches, 10 cubic inches having been
displaced by the volume of the snails. Hence it appears,
that nearly two-thirds of the oxygen had been consumed, con-
verted into carbonic acid gas, which may tolerably account
for the temperature of the snails being, as denoted in the
observations recorded, a little higher than that of the air.
The comparatively short time that the snails lived in a
388 Oxydation of the Diamond in the Liquid Way.
confined moist atmosphere, I am disposed to connect with
their activity, favoured, and it may be excited, by the humi-
dity of the air, in other circumstances, when free, congenial
to their nature and habits; suffering thus, somewhat in the
Same manner as certain hybernating animals soon become
victims to a low temperature, if unduly stimulated to exer-
tion, roused from their safe dormant state; or, as certain
plants seem to perish rapidly, if supplied with water, and that
be allowed to stagnate, the water in the first instance bring-
ing their vegetating powers into great activity, and the exer-
cise of them soon exhausting the water of its oxygen, in con-
sequence of which, results analogous to suffocation take place
fatal to the plants.
BARBADOES, August 7, 1848.
Oxydation of the Diamond in the Liquid Way. By Professor
R. E, Rocers and Professor W. B. RoGEers, University
of Virginia.
The processes for oxydating the diamond, hitherto de-
scribed, consist in actually burning this gem either in the
open air, in oxygen gas, or in some substances rich in oxy-
gen, as nitrate of potassa. In all these experiments a very
elevated temperature is required. We have, therefore, been
much interested by the discovery suggested to us by our ex-
periments on graphite, but not completely verified until lately,
that the diamond may be converted into carbonic acid in the
liquid way, and at a moderate heat, by the reaction of a mixture
of bichromate of potassa and sulphuric acid; in other words,
by the oxydating power of chromic acid.
The method of proceeding is much the same as in the oxy-
dation of graphite, as described by us in the May Number of
this Journal ; but the progress of the action is slower.
To succeed in the experiment, it is necessary to reduce the
chips of diamond to a very fine powder, by trituration, with
repeated portions of pure siliceous sand, in an agate mortar.
A single grain weight of the gem will suffice for several ex-
Prizes offered by the Royal Scottish Society of Arts. 389
periments. In our repeated trials we have generally used
less than half a grain, and we have obtained unequivocal
proof of oxydation, by the evolved carbonic acid, when using
less than two-tenths of a grain.
The apparatus employed is, in the main, identical with
that used in the analysis of graphite, but the Liebig tube is
in this case replaced by a vessel containing lime-water.
Precautions are necessary to correct a slight error arising
from the evolution of a minute amount of carbonic acid from
the bichromate and sulphuric acid, caused by the presence
of a trace of organic matter, or of carbonate in the former.
Operating on half a grain of diamond, we have in a first
process obtained half a grain of carbonate of lime, and using
the residuary matter have continued the oxydation, until at
length the amount of carbonic acid evolved, approached nearly
to that due to the entire weight of the diamond. In these
experiments, the carbonic acid, evolved by the bichromate
and sulphuric acid, is first expelled from the apparatus by a
particular mode of conducting the operation.—( The American
Journal of Science and Arts, Second Series, No. 16, July
1848, p. 110.)
List of Prizes offered by the Royal Scottish Society of Arts,
Jor Session 1848-49.
The Society proposes to award Prizes of different values (none to
exceed Thirty Soverigns), in Gold or Silver Medals, Silver Plate, or
Money, for approved Communications, relative to Inventions, Dis-
coveries, and Improvements, in the Mechanical and Chemical Arts
in General, and also to means by which the Natural Productions of
the Country may be made more available ; and, in particular, to,—
I. Inventions, Discoveries, or Improvements in the Useful Arts,
including the Mechanical and Chemical ; and in the Mechanical
Branch of the Fine Arts ; such as the following, viz. :—
1. Mechanical Arts.
1, Mernops of Economising Fuel, Gas, &c.,—of Preparing Su-
perior Fuel from Peat,—of Preventing Smoke and Noxious Va-
pours from Manufactories,—of Warming and Ventilating Public
Edifices, Private Dwellings, &e.—of constructing Economical and
390 Prizes offered by the Royal Scottish ‘Society of Arts.
Salubrious Dwellings for the Working Classes, especially in
Towns,—of Filtering Water in large quantities,—of rendering
large supplies of Water available for the purpose of extinguishing
Fires; and the best application of Manual or other Power to
the working of Fire-Engines,—of Constructing Buildings on the
most correct Acoustic principles,—of applying Glass to new and
useful purposes,
2. Inventions or IMPROVEMENTS in the Manufacture of Iron, and
other Metals, simple or alloyed,—in the Manufacture of Writing
and Printing Paper,—in Tuyeres for Blast Furnaces,—in the
Making and Tempering of Steel—in Gilding Brass,—in Artifi-
cial Pavement,—in Balance or Pendulum Time-Keepers; or in
Electro-Magnetic Time-Keepers,—in Screw-cutting,—in Print-
ing-Presses,—in Stereotyping, and in cleaning the plaster from
the Types,—in Type-Founding,—in the Composition of Printers’
Rollers,—in Shipbuilding, with regard to Ventilation, both for
the Crew and the Timbers,—in Currying and Tawing of Leather,
—in Stationary and Locomotive Engines,—in Railway Wheels
and Axles,—in Brakes for Stopping the Trains,—in Railway
Telegraphs and Signals,—in Smith-Work and Carpentry,—in
Tools, Implements, and Apparatus for the various trades,—in
Electric, Voltaic, and Magnetic Apparatus.
1. Chemical Arts.
ImpROVEMENTS in Fine Glass for Optical Purposes, free from Veins,
and of a Dense and Transparent quality,—also in rendering Glass
hard and difficult of fusion for Chemical Purposes,—in the An-
nealing of Glass,—in the Manufacture of Writing Inks, both com-
mon and Copying, so as to flow freely from Metallic Pens,—in
the application of Caoutchoue and Gutta Percha to new and useful
purposes.
3. Relative to the Fine Arts.
ImpRovEMENTS in Patterns of Porcelain, Common Clay, or Metal,
of Domestic Articles of simple and beautiful Forms, without
much Ornament, and of one Colour,—in the Preparation of
Lime and Plaster for Fresco Painting, and in appropriate tools
for laying the Plaster with precision,—in Engraving on Stone,—
in Daguerreotype, Talbotype, or other Photographic processes,—
in applying such processes to stone, for Lithographic Printing,—
in Electrotype processes,—in the production of White or Neutral
Artificial Light by means adapted to ordinary use,—in Die-
sinking,—in Wood-cutting, and other methods of illustrating
Books to be printed with the Letter-Press,—in Printing from
Wood-cuts, &c.,—in Ornamental Metallic Casting.
II. Experiments applicable to the Useful Arts.
Prizes offered by the Royal Scottish Society of Arts. 391
III. Norices of Processes in the Useful Arts practised in this
Country, but not generally known.
IV. Inventions, Processes, or Practices from Foreign Countries,
not generally known or adopted in this country.
V. Pracrican Derarzs of Public or other Undertakings of Na-
tional importance, not previously published.
VI. Discovery of Substitutes for Hemp and Flax, &e.
The SOCIETY also proposes to award the KEITH PRIZE,
value THIRTY Sovereigns,
For some important ‘‘ Invention, Improvement, or Discovery, in
the Useful Arts, which shall be primarily submitted to the Society,”
betwixt and 1st April 1849.
GENERAL OBSERVATIONS.
The Communications and the Descriptions of the various inven-
tions, &c., to be full and distinct, and to be written on Foolscap
_ paper, leaving margins at least one inch broad, on both the outer and
inner sides of the writing, so as to allow of their being bound up in
volumes ; and, when necessary, to be accompanied by Specimens,
Drawings, or Models. All drawings to be on Imperial Drawing
Paper, unless a larger sheet be requisite. The Drawings, and the
Letters or Figures of Reference, to be in bold lines, or strongly
coloured, so as to be easily seen at about the distance of twenty feet
when hung up in the Hall of Meeting.
The Society to be at liberty to publish in their Transactions copies
or abstracts of all Papers submitted to them. All Models, Draw-
ings, &c., for which Prizes shall be given, to be held to be the pro-
perty of the Society ; the Value of the Model, &c., being taken into
account in fixing the amount of the Prize.
Communications, Models, &c., are to be addressed to James Top,
Esq., the Secrerary, 55 Great King Street, Edinburgh, Postage or
Carriage paid; and they are expected to be lodged on or before 1st
October 1848, in order to ensure their being read and reported on
during the Session, the ordinary Meetings of which end in April
1849 ; but, those which cannot be lodged earlier, will be received
up to Ist March 1849.
By order of the Society,
James Top, Secretary,
Epinpureu, 10th April 1848.
( 392 )
SCIENTIFIC INTELLIGENCE.
METEOROLOGY AND HYDROLOGY.
1. Researches on the Constitution of the Atmosphere—M.
Doyére having had particular occasion to examine the phenomena of
respiration of man and animals exposed to the influence of the vapour
of ether, he was induced to try the protochloride of copper as an ab-
sorbent of oxygen in gaseous mixtures, The favourable results of
the employment of this reagent having induced him to pursue the
study of eudiometry, he succeeded in effecting a combination of in-
struments with simple means of correction and easy management,
which gave the original volume of a gas, and that of the residue
which any absorbent leaves, within a ten-thousandth part.
The author was surprised to find that this method indicated larger
proportions of oxygen than those generally admitted, and that even
among them considerable variations occurred. M. Doyére continued
his operations for four months, and the results proved that the com-
position of the air varies incessantly. In general, the variation is
slight, and the proportions of oxygen varying between 208 and 210
parts in 1000; but this variation was found to go as low as 205,
and as high as 212. These great differences never occurred suddenly ;
the quantity having diminished or increased as gradually as consists
with such a description of facts. M. Doyére shews that his results
harmonize perfectly with those of MM. Boussingault and Dumas
obtained at Paris; with those which were obtained by M. Stas at
Brussels, and with the great work achieved by M. Lewy with re-
spect to the air of the North Sea and that of Guadaloupe. He also
proves that Dr Prout’s experiments on the weight of the air, and
those published by M. Regnault, agree with his view of the subject,
and prove that the air is continually varying.
He shews also, that the densities of oxygen and nitrogen given by
M. Regnault, do not agree with the composition of the air, when
stated to contain only 209 of oxygen; and that they indicate
Z3;ths of oxygen if the mean density of nitrogen be adopted, and
212 to 215, if the extreme densities resulting from the experiments
of M. Regnault be preferred. — (Comptes Rendus, Fevrier 14,
1848 ; Philosophical Magazine, vol. xxxiii. No. 220, p. 165, Third
Series.)
2. An Account of some Observations made on the Depth of Rain
which falls in the same localities at different altitudes in the Hilly
Districts of Lancashire, Cheshire, and Derbyshire. By S. C. Ho-
mersham, C.E. Communicated by George Newport, Esq., F.R.S.
—tThe author states, that having been present at a meeting of the
Royal Society, when a paper was read on the Meteorology of the
Lake Districts of Westmoreland and Cumberland, by J. Miller, Esq.,
of Kendal, in which it was stated that the quantity of rain falling in
Scientific Intelligence— Meteorology and Hydrology. 393
mountainous districts appears to increase from the valley upwards to
the altitude of about 2000 feet, and then rapidly to decrease, he wishes
to lay before the Society the results of his own observations, which
lead him to a different conclusion. After stating that he had been
at some trouble to analyse Mr Miller’s observations, which have been
communicated to him by that gentleman, he is of opinion that they
do not warrant the conclusion deduced from them, and are also at
variance with the recorded observations of Davies Barrington, Dr
Dalton, Professor Daniell, and others, as well as those of Captain
Lefroy, and Colonel Sabine.
The author then shews from observations very carefully made in
Lancashire, Cheshire, and Derbyshire, from J anuary 1646 to March
1848, that more rain falls at the bottom than at the top of hills of
less elevation than 2000 feet in the same locality, and that the
quantity diminishes in a ratio almost precisely corresponding to the
height. The details are given in tables of monthly observations,
made near Whaley and Congleton in Cheshire, and Chapel-in-le-
Frith in Derbyshire, and also of other observations made for the Cor-
poration of Liverpool at Rivington and in the valley of Roddlesworth,
near Preston, in Lancashire, which have been communicated to him.
The whole of these observations, carefully analysed and compared,
have led the author to a conclusion opposite to that arrived at by
Mr Miller.
Tie author then proceeds to shew, that the details of Mr Miller's
own observations are in accordance with his, and that they fully
bear out his views, and not those of that gentleman. Some appa-
rent discrepancies in the results are pointed out, and their cause ex-
plained, by reference to peculiarities in the localities in which the
observations were made, as shewn by reference to a map accompany-
ing this paper, and to the details given by Mr Miller; so that the
observations of this gentleman, when examined with reference to
locality, fully confirm those of the author, and of the authorities he
has quoted, and establish the proposition, that, as a general law, the
quantity of rain deposited in the valleys and at the bottoms of hills,
is greater than in more elevated situations in the same locality.
—(Philosophical Magazine, Third Series, vol. xxxiii., No. 220,
p- 158.
3. Inundation of the Indus. Taken from the lips of an Eye-wit-
ness, in A.D, 1842. Communicated by Captain J. Abbott.
Ushruff Khan, Zemindar of Torbaila, states,—* In the month of
Poos (December), the Indus was very low. In Maag and Phagoon
(January and February), it was so low as to be fordable (an unpre-
cedented phenomenon). In Chayt, it continued very low, but not
fordable. In Bysakh (April) the same. About the middle of
Jayt (May), the atmosphere was one day observed to be very thick,
the air still, At about 2 p.m., a murmuring sound was heard
594 Scientific Intelligence—Meteorology and Hydrology.
from the north-east, amongst the mountains, which increased until it
attracted universal attention, and we began to exclaim, ‘ What is
this murmur ? Is it the sound of cannon in the distance ? Is Gund-
gurh bellowing? Is it thunder?’ Suddenly some cried out, ‘The
rivers come!’ and I looked and perceived that all the dry channels
were already filled, and that the river was racing down furiously
in an absolute wall of mud, for it had not at all the colour or
appearance of water. They who saw it in time easily escaped.
They who did not were inevitably lost. It was a horrible mess
of foul water—carcasses of soldiers, peasants, war-steeds, camels,
prostitutes, tents, mules, asses, trees, and household-furniture—in
short, every item of existence jumbled together in one flood of ruin ;
for Raja Goolab Singh's army was encamped in the bed of the Indus
at Koolaye, three koss above Torbaila, in check of Poynda Khan,
Part of the force was at that moment in hot pursuit, or the ruin
would have been wider. The rest ran, some to large trees, which
were all soon uprooted and borne away ; others to rocks, which were
speedily buried beneath the waters. Only they escaped who took at
once to the mountain side. About 500 of these troops were at
once swept to destruction. The mischief was immense. Hundreds of
acres of arable land were licked up and carried away by the waters.
The whole of the Seesoo trees which adorned the river’s banks; the-
famous Burgutt tree of many stems—time out of mind the chosen
bivouac of travellers—were all lost in an instant. The men in the
trees, the horses and mules tethered to the stems, all sunk alike into
the gulf, and disappeared for ever. As a woman with a wet towel
sweeps away a legion of ants, so the river blotted out the army of
the Raja. There were two villages upon an island opposite Ghazi.
One of the inhabitants was returning from Srikote and descending the
mountain ; when he came within sight of the spot where he had left
all he held dear, he naturally looked with affection toward his home.
Nothing was visible but a wide-rushing sea of mud. His house, his
friends, his household, his village, the very island itself, had disap-
peared. He rubbed his eyes in mortal terror, distrusting his sight,
hoping it was a dream. But it was a too horrible reality. He
alone, of all that busy hive of moving, struggling, hoping, fearing
beings, was left upon the earth.”
So far the Zemindar: and to this eloquent description of an eye-
witness, I need only add, that it will take hundreds, if not thousands,
of years to enable time to repair with its healing hand the mischief
of that terrible hour. The revenue of Torbaila has, in consequence,
dwindled from 20,000 to 5000 rupees. Chuch has been sown with
barren sand. The timber, for which the Indus had been celebrated
from the days of Alexander until this disaster, is now so utterly
gone, that I vainly strove throughout Huzara to procure a Seesoo
tree for the repair of the field artillery carriages. To make some
poor amends, the river sprinkled gold-dust over the barren soil, so
a” - iad
Scientific Intelligence—Meteorology and Hydrology. 395
that the washings for several successive years were farmed at four
times their ordinary rent. It is generally believed that the accumu-
lation of the waters of the Indus was occasioned by a landslip which
blocked up the valley; but this and other interesting questions we
must leave for solution to Mr Vans Agnew, whose late mission to
Gilget promises so much to the lovers of science-—(Journal of the
Asiatic Society of Bengal, New Series, No. 188, p. 230.)
4. Flood in the Macquarie, in Australia. —The talented and ener-
getic Sir Thomas Mitchell, Surveyor-General of New South Wales,
in his lately-published Travels in Tropical Australia, gives the fol-
lowing graphic account of a flood in the Macquarie :—
* 13th February.—I was again laid up with the maladie du pays
—sore eyes. Mr Stephenson took a ride for me to the summit of
Mount Foster, and to various cattle-stations about its base, with
some questions, to which I required answers, about the river and sta-
tions on it lower down. But no one could tell what the western side
of the marshes was like, as no person had passed that way; the
country being more open on the eastern side, where only the sta-
tions were situated; Mr Kinghorne’s, at Graway, about five miles
from our camp, being the lowest down on the west bank. Mr
Stephenson returned early, having met two of the mounted police.
To my most important question—What water was to be found lower
down in the river? the reply was very satisfactory, namely, ‘ Plenty,
and a jlood coming down from the Turdn mountains.’ The two po-
licemen said they had travelled twenty miles with it on the day pre-
vious, and that it would still take some time to arrive near our camp.
About noon the drays arrived in good order, having been encamped
where there was no water, about six miles short of our camp; the
whole distance travelled, from Cannonba to the Macquarie, having
been about nineteen miles. In the afternoon two of the men, taking
a walk up the river, reported, on their return, that the flood poured
in upon them, when in the river-bed, so suddenly, that they narrowly
escaped it. Still the bed of the Macquarie before our camp conti-
nued so dry and silent, that I could scarcely believe the flood coming
to be rea], and so near to us, who had been put to so many shifts
for want of water. Towards evening, I stationed a man witha gun
a little way up the river, with orders to fire on the flood’s -appear-
ance, that I might have time to run to the part of the channel near-
est to our camp, and witness what I had so much wished to see, as
well from curiosity as urgent need. The shades of evening came,
however, but no flood; and the man on the look-out returned to the
camp. Some hours later, and after the moon had risen, a murmur-
ing sound like that of a distant waterfall, mingled with occa-
sional cracks as of breaking timber, drew our attention, and I
hastened to the river-bank, By very slow degrees the sound grew
louder, and at length so audible, as to draw various persons be-
sides from the camp to the river-side. Still no flood ap-
396 Scientific Intelligence—Geology.
peared, although its approach was indicated by the occasional rend-
ing of trees with a loud noise. Such a phenomenon, in a most
serene moonlight night, was quite new to us all. At length,
the rushing sound of waters and loud cracking of timber, an-
nounced that the flood was in the next bend. It rushed into our
sight, glittering in the moonbeams, a moving cataract, tossing before
it ancient tr ees, and snapping them against its banks. It was pre-
ceded by a point of meandering water,: picking its way, like a thing
of life, through the deepest parts of the dark, dry, and shady bed, of
what thus again became a flowing river. By my party, situated as
we were at that time, beating about the country, and impeded in our
journey, solely by the almost total absence of water, suffering exces-
sively from thirst and extreme heat, I am convinced the scene never
can be forgotten. Here came at once abundance, the product of
storms in the far-off mountains that overlooked our homes. My
first impulse was to have welcomed this flood on our knees, for the
scene was sublime in itself, while the subject—an abundance of
water sent to us in the desert—greatly heightened the effect to our
eyes. Suffice it to say, I had witnessed nothing of such interest in
all my Australian travels. Even the heavens presented something
new, at least uncommon, and therefore in harmony with this scene ;
the variable star 7 Argus had increased to the first magnitude, just
above the beautiful constellation of the southern cross, which slightly
inclined over the river, in the only portion of sky seen through the
trees. That very red star, thus rapidly increasing in magnitude,
might, as characteristic of her rivers, be recognised as the star of
Australia, when Europeans cross the line. The river gradually
filled up the channel nearly bank high, while the living cataract tra-
velled onward, much slower than I had expected to see it ; so slowly,
indeed, that more than an hour after its first arrival the sweet music
of the head of the flood was distinctly audible from my tent, as the
murmur of waters and the diapason crash of logs travelled slowly
through the tortuous windings of the river bed. I was finally lulled
to sleep by that melody of living waters, so grateful to my ear, and
evidently so unwonted in the dry bed of the thirsty Macquarie.
Thermometer at sunrise, 47°; at noon, 79°; at 4 p.m., 88°; at 9,
63°—with wet bulb, 57°.—(Lieutenant-Colonel Sir T. L. Mitchell,
Kt., on Tropical Australia, p. 56.)
GEOLOGY.
5. The Glacial Theory not abandoned by its author, Professor
Agassiz.—In some influential quarters in this country, and also on
the Continent of Europe, it is believed that Professor Agassiz has
abandoned his famous and ingenious glacial theory; but the fol-
lowing extract from a valuable work, entitled, Principles of Zoo-
logy, just published by Agassiz, shews that this belief is unfounded :—
Scientific Intelligence—G eology. 397
The Modern Epoch—Reign of Man,—The present epoch suc-
ceeds to, but is not a continuation of, the Tertiary age. These
two epochs are separated by a great geological event, traces of which
we see everywhere around us. The climate of the northern hemi-
sphere, which had been, during the Tertiary epoch, considerably
warmer than now, so as to allow of the growth of palm-trees in the
temperate zone of our time, became much colder at the end of this
period, causing the polar glaciers to advance south, much beyond
their previous limits. It was this ice, either floating like icebergs,
or, as there is still more reason to believe, moving along the ground,
like the glaciers of the present day, that, in its movements towards
the south, rounded and polished the hardest rocks, and deposited the
numerous detached fragments brought from distant localities, which
we find everywhere scattered about upon the soil, and which are
known under the name of erratics, boulders, or greyheads. This
phase of the earth’s history has been called by geologists the Glacial
or Drift period.
After the ice that carried the erratics had melted away, the sur-
face of North America and the North of Europe was covered by the
sea, in consequence of the general subsidence of the continents. It
is not until this period that we find, in the deposits known as the
diluvial or pleistocene formation, incontestable traces of the species
of animals now living.
It seems, from the latest researches of geologists, that the ani-
mals belonging to this period are exclusively marine ; for, as the
northern part of both continents was covered to a great depth with
water, and only the summits of the mountains were elevated above
it, as islands, there was no place in our latitudes where lafid or fresh-
water animals could exist. They appeared, therefore, at a later pe-
riod, after the water had again retreated; and as, from the nature
of their organization, it is impossible that they should have migrated
from other countries, we must conclude that they were created at a
more recent period than our marine animals.
Among these land animals which then made their appearance,
there were representatives of all the genera and species now living
around us, and besides these, many types now extinct, some of them
of a gigantic size, such as the Mastodon, the remains of which are
found in the uppermost strata of the earth’s surface, and probably
the very last large animal which became extinct before the creation
of Man.
It is necessary, therefore, to ye the two periods in the
history of the animals now living; one in which the marine ani-
mals were created, and a second, during which the land and fresh
water animals made their appearance, and, at their head, Man.—
(Principles of Zoology by Louis Agassiz and Augustus A. Gould,
Part i., p. 203.)
VOL. XLV. NO. XC.—OCTOBER 1848. 2D
398 Scientific Intelligence—Geology.
6. Level of the Caspian and Dead Seas.—The Caspian Sea, ac-
cording to A. Erman, in 1836, is 84 metres (266 feet) below the level
of the Black Sea. The Scientific Commission from the Russian Go-
vernment in 1837, found it 101-2 feet (English.) M. H. de Hell
has concluded from a barometric levelling, that the difference of level
between the Caspian and Sea of Azof, is only 18-304 metres. From
the geodesic results of Sabler and Sowitsch, M. Hell deduced 33°7
metres, and afterwards 27, as the difference of level. From the
same observations, Humboldt. obtained 81-4 feet (English.)
M. Cailler (1839) deduced from the observations of Bertou (1837
and 1839), Moore and Beet (1837), and Schubert (1837), as a
mean, that the Dead Sea is depressed 185 metres below the Medi-
terranean. Bertou placed it at 419°6 metres. David Wilkie (in 1842)
found the depression 365 metres; Lymonds, 427 metres; Ru-
segger (1841), 434 metres. Delceros (1843) derives from all the ob-
servations, that 426°3 metres is the amount of depression. Moore
and Beck sounded 300 fathoms in the Dead Sea without finding
bottom.—(D' Archiac, Hist. Geol.)
7. Common Salt.—The amount of common salt in all the oceans,
is estimated by Schafhiautl at 3,051,342 cubic geographical miles.
This would be about five times more than the mass of the Alps,
and only one-third less than that of the Himalaya. The sulphate
of soda equals 633,644°36 cubic miles, or is equal to the mass of
the Alps. The chloride of magnesium, 441,811-80 cubic miles ; the
lime salts 109,339°44 cubic miles. The above supposes the mean
depth to be but 300 metres, as estimated by Humboldt. Admit-
ting, with Laplace, that the mean depth is 1000 metres, which is
more probable, the mass of marine salt will be more than double the
mass of the Himalaya.—(American Journal of Science and Arts,
Second Series, No. 16, July 1848, p. 148.)
8. Talus Slopes.—In the chains of the Vosges and Jura, Leblane
found no talus exceeding an inclination of 35°. This slope, he ob-
serves, is most rigorously the inclination of the diagonal of a cube.
The density of the material has no effect on the slope, as the ava-
lanches of snow and fall of rocks take the same slope. Some rough
rocks, as trachyte and sandstone debris, may form a declivity of 37°
to 39°. A talus of 42° to 45°, is not one of stable equilibrium.—
(American Journal of Science and Arts, Second Series, No. 16,
July 1848, p. 133.)
9. On the Remains of Marine Shells of Existing Species found
interspersed in deep portions of the Hills of Drift and Boulders m
the Heights of Brooklyn, on Long Island, near New York City.
By W. C. Redjield.—These remains had long since attracted the
attention of Dr Mitchell, and other naturalists of the vicinity ; but
the true character of the formation and the peculiar positions in
which the shells were found, were not distinctly known to geologists.
It fortunately happened that M. Desor and Count Portals, while
Scientific Intelligence— Zoology. 399
on a visit to Brooklyn, a few months since, discovered fragments of
these remains in the great masses of boulder-drift in South Brook-
lyn, through which the new streets are being excavated. At their
invitation, Mr Redfield had examined the place, in company with
Professor Agassiz, and had obtained a variety of specimens which
were found at depths varying from twenty-five to forty feet below
the original surface of the hills in which they were imbedded.
Since that occasion, Mr Redfield has found similar remains in
these hills, about two miles northward from the first locality, and
has collected numerous specimens, which he exhibited to the meet-
ing, together with samples or fragments of the original beds enclos-
ing these shells, which had been dispersed by the drift, and thus
lodged in the Brooklyn Hills. The number of species comprised in
the collection, amounts to ten or twelve, among which are those now
most common to our shores.
These discoveries, in regard to the drift, appear to agree with
those which Sir R. Murchison states to have been found in the drift of
Europe. They must be admitted as proving that the most common
species of our present molluscs were of prior origin to the hills where
the remains were found, and probably older than the entire forma-
tion of drift and boulders which is found in the Northern States.
The species obtained are not such as indicate a colder climate than
now prevails, But the shells found by Professor Emmons and others
in the pleistocene clays, on the borders of Lake Champlain, and by
Mr Lyell and others in Canada, appear to belong to a later period
of the drift ; and Mr Redfield infers that they were brought in from
more northern regions, or from deeper waters, by the great arctic
currents which must have swept over these regions during the drift
period, when this portion of the continent was deeply submerged.
These polar currents, annually freighted with immense fields and
islands of floating ice, such as are now diverted along the shores and
banks of Newfoundland, till they are met by the dissolving influences
of the Gulf Stream, nearly in the latitudes of Boston and New York,
he considered to be among the chief agents in producing the remarkable
phenomena of the drift period.—( American Journal of Science and
Arts, Second Series, vol. v., No. 12, p- 110.)
ZOOLOGY.
10.. The number of Vertebrate, Molluscous, Articulated, and Ra-
diated Animals.—The number of vertebrated animals may be esti-
mated at 20,000. About 1500 species of mammals are pretty pre-
cisely known, and the number may probably be carried to about 2000.
The number of Birds well known is 4000 or 5000 species, and the
probable number is 6000,
The Reptiles number about the same as the Mammals—1500 de-
scribed species—and they will probably reach the number of 2000.
The Fishes are more numerous; there are from 5000 to 6000
400 Scientific Intelligence— Zoology .
species in the museums of Europe, and the number may probably
amount to 8000 or 10,000.
The number of Molluses already in collections, probably reaches
8000 or 10,000. There are collections of marine shells, bivalve and
univalve, which amount to 5000 or 6000; and collections of land
and fluviatile shells, which count as many as 2000. The total num-
ber of molluscs would, therefore, probably exceed 15,000 species.
Among the articulated animals, it is difficult to estimate the num-
ber of species. "There are collections of coleopterous insects which
number 20,000 to 25,000 species ; and it is quite probable, that by
uniting the principal collections of insects, 60,000 or 80,000 species
might now be counted; for the whole department of articulata, com-
prising the crustacea, the cirrhipeda, the insects, the red-blooded
worms, the intestinal worms, and the infusoria, as far as they belong
to this department, the number would already amount to 100,000;
and we might safely compute the probable number of species actually
existing at double that sum.
Add to these about 10,000 for radiata, echini, star-fishes, me-
dusz, and polypi, and we have about 250,000 species of living ani-
mals; and supposing the number of fossil species to equal them, we
have, at a very moderate computation, half a million of species.—
(Principles of Zoology. By Agassiz and Gould, Part i, p. 3.)
11. On Changes in the Fauna of Sweden. By Professor Nilsson.
(Abstracted from the Swedish. By N. Shaw, M.D.)—As a proof
of the oscillations or periodical changes observed in the Fauna of
Sweden, Professor Nilsson mentioned that the Canis Lupus, at the
time when Olaus Magnus published his Historia Gentium Septentri-
onalium, in 1535, or about 300 years ago, was very common in
Sweden, and, during the severe cold of the Swedish winter, exceed-
ingly dangerous to travellers; but 160 years later (1735, or 24 years
prior to the appearance of Linnzus’s Fauna Suecica), the same
animal had become very rare. In our days this animal has again
reappeared in large numbers, although by no means so numerous or
so dangerous as in the times of Olaus Magnus. Another animal,
the Vespertilio noctula, the largest of the Swedish bats, was for-
merly not found in Sweden, and was unknown to Linneus. Retzius
of Stockholm (who likewise published a Fauna Suecica abont the year
1825), informs us that the Vespertilio noctula made its appearance
in the South of Sweden, and had become numerous in the walls of
the ancient cathedral of Lund. This was formerly the case; and
during some late repairs on the cathedral, a number of very ancient
bones and skeletons of bats, the greater part of which belonged to the
Vespertilio noctula, were discovered in a hole in the old walls. It
is very clear that these bones must have remained in the walls about
700 years, and at a time when the animal was very frequent in Sweden.
Since that date it vanished from the country, and has again in our
time reappeared.
Scientific Intelligence— Zoology. 401
Among birds, the same periodical change takes place. The Mo-
tacilla alba was, thirty years ago, very numerous in Sweden, has
since vanished, and again reappeared. The Pyrrhula vulgaris has,
as far back as Nilsson remembers, been very common in Scania every
winter; but during the last three winters, not a single example of
this little friendly guest has been seen near Lund.—(The Report of
the British Association for the Advancement of Science, for 1847,
p. 79.)
12. On the Sounds emitted by Molluses—Mr Lovel Reeve con-
tributed a “ Notice of an observation made by Mr Taylor at Bath-
caloa, Ceylon, on the Sounds emitted by Mollusca.” There is a cu-
rious thing here, which I do not know whether you ever heard of.
Going at night on the lake in the neighbourhood of the fort, one is
struck by a loud, musical noise proceeding from the bottom of the
water. It is caused by multitudes of some animals inhabiting shells,
I believe,—at least the natives call them “ singing shells,”—and I
have been shewn what they said were those which made the noise.
Some people doubt, however, whether it is these shells that sing, or
some others, or fish of some kind. Whatever it be, I can answer for
having heard the sounds repeatedly,—so distinetly, too, that you
cannot help hearing them, even when the oars and paddles are
splashing, and the boat going fast through the water. The sounds
are like those of an accordion or A®olian harp, guitar, or such like,
vibrating notes, and pitched in different keys.
Lieut.-Colonel Portlock made the following communication on the
same subject.—I think it right to draw attention to the Helix aper-
tus, which is very remarkable for its property of emitting, when
irritated, a strong and well-marked sound. When I first noticed the
sound thus emitted, on accidentally touching the animal, I was pe-
culiarly struck by it, and immediately referred to Rossmiiesler, who,
I found, describes the quality of the animal in a very graphic man-
ner, stating that the sounds were such as indicated irritation. The
Helix apertus is very abundant in Corfu, appearing sticking on the
squill leaves in the spring, when, about the beginning of March, the
annual increment of growth of the shell is perfectly soft. If the
animal be irritated by a touch with a piece of straw or other light
material, it emits a distinctly audible sound, possessing a singular
grumbling or querulous tone. This it frequently repeats, if freshly
touched, and continues to do so for, apparently, an unlimited space
of time, as I kept one for a considerable time in my house, and
heard this sound whenever I touched it. As Rossmiiesler has so
fully described this fact, I shall only add that I have, on more
oceasions than one, heard what I considered a similar, though very
feeble, sound from the Helix aspersa ; and I need not say that the
explanation seems very easy, from the structure of the animal.—
(Atheneum, No. 1089, p. 915.)
13. On the Boring of Molluscs into Rocks, and on the Removal
of portions of their Shells. By Mr A. Hancock.—The author stated
402 Scientific Intelligence— Zoology.
that three theories had been advocated as to the way in which mol-
luses effect their entrance into the rocks, &c., in which they are
found. ‘The first is, that the animal works with the shell in the
manner of a rasp or an augur. The second, that it secretes an acid,
whereby the substance with which it comes in contact is dissolved.
The third, that the effect is produced by the vibratile action of the
parts exciting constant currents of water against the substance, aided
by its impetus when drawn in down the elongated body of the ani-
mal. The author objected to all these theories. In opposition to
the first, he stated that the burrows are tortuous, and of a form to
render it impossible that the valves of the shell should act as a
centre-bit or augur. Again, the spines which cover many of the
shells are covered with an epidermis, which, if the shells were used
for boring, would be rubbed off, which is not the case. The young
of these creatures commence boring directly they are hatched, when
their shells are too delicate to produce any effect on the substances
into which they penetrate. In opposition to the theory that a sol-
vent isemployed, the author stated that this must be of an acid nature;
and that by the most careful experiments, he had been unable to de-
tect the slightest indications of any acid secretion from any part of
the bodies of these animals. Besides, if a solvent were secreted, ca-
pable of dissolving calcareotis and sandstone rocks, ought it not also to
act on the shell of the animal? which was found not to be the case.
The physical appearances of the excavation, also, were not like those
produced by a solvent. It would not account, either, for their bor-
ing in wood. The wood found in the stomach of the Teredo navalis
was found to be chemically unchanged. The theory of the ciliary
currents was objected to, on the ground that it was inadequate to
explain the phenomena. If these delicate ciliary currents were ca-
pable of effecting this object, the dashing of the water over the same
surfaces ought to have as much more effect, as their physical force
is greater. The anatomical structure of the part, also, on which the
cilia are situated, would forbid the supposition that currents produced
by them could effect this object. These theories being insufficient
to explain the phenomenon, the author proposed a new one. He
believes that the anterior portion of the animal is the excavating
instrument. This, in Teredo and Pholas, is composed of the foot
and edges of the mantle, which together fill up the frontal gape of
the shell. In Salicava and Gastrochena, it is formed wholly of the
edges of the mantle, which are united and thickened. The form of
the excavation corresponds to the form of these organs... On a minute
examination of the surface of the foot of Teredo Norwegica, it is found,
under the microscope, to be crowded with minute, brilliant points, which,
on being compressed, consist of comparatively large crystalline bodies
imbedded within them, These crystals are numerous, and of va-
rious sizes and shapes, chiefly five and six sided, but not by any
means regularly so. They all agree in having one or more elevated
Scientific Intelligence—Zoology. 403
points near the centre. These bodies are highly refractive, and are,
for the most part, pretty regularly distributed over the whole convex
surface of the foot, but are occasionally congregated into masses.
Similar crystalline bodies are imbedded in the edges of the mantle
surrounding the foot. In Pholas, the same appearance is presented
both in the foot and the surrounding edges of the mantle. Sazi-
cava rugosa has also the anterior portion of the animal abundantly
provided with crystalline bodies like those already described ; so also
with the foot and mantle of Patella vulgata. These bodies are con-
stantly being shed. Acetic acid has no effect on them; and in Saxi-
cava, strong nitric acid produces no change after several days’ im-
mersion. Those of Pholas and Teredo appear to be ultimately acted
on by this acid, but are never totally destroyed by it. It is by
means of these bodies that the author believes the animal rasps
down the substances in which they are found. The whole of these
animals are also supplied with powerful muscles, by which they may
effect the necessary movement for the production of this result.
Judging from analogy, the author believes that all the boring mol-
luses excavate in the same manner ; none by the rasping or cutting
of their valves, none by a solvent, none by ciliary currents. In the
same manner he accounts for the gradual disappearance of certain
portions of the columella in the Gasteropodous Mollusca ; not by the
process of ‘* absorption,” as has been supposed.
Mr Philips explained more fully the nature of the boring process
carried on by these animals, and thought the author of this paper
had thrown much light on the subject. Granules on the tongue of
many of the molluscs had been long known. ‘They appeared to be
of a siliceous character. Professor Owen stated that there were no
& priori objections to the theories opposed by the author, and one or
another had been adopted by naturalists to explain the phenomenon
of boring. At the same time, the inadequacy of these theories for
the explanation of some cases had led them to regard the foot and
mantle as engaged in the operation ; how, he now, for the first time,
was informed. He still, however, thought that an exception ought
to be made in the case of the Pholas navalis, which he yet believed
must burrow in wood by means of its shell. Professor E, Forbes
said, that, having to write on this subject in his ‘ History of the
British Mollusca,” he had carefully gone over the evidence in favour
of all the views adopted, and was not unaware of those of the author.
He found little evidence to support the theory of a solvent being em-
ployed, or of the agency of ciliary currents; but he found as little
in favour of the siliceous particles of the author, He had carefully
examined Saxicava, and could find no siliceous granules. Mr Hen-
frey had examined these creatures under the microscope, and had
failed to detect any thing of the kind. A chemical examination
made by Mr Henry had also failed to detect them. He did not deny
that they might be present in Clavagella. Under these cireum-
stances he had endeavoured to take an eclectic view of the subject.
404 Scientific Intelligence— Zoology.
The different substances into which these animals penetrated might
require different means. Some species of the genus Pholas bored
in wood, some in stone, but none in both. Mr Hancock had referred
to a species of sponge, the Clione, as a borer. This animal was un-
doubtedly irritable, but he doubted if it made itself the holes which
it occupied. Mr Bowerbank could bear testimony to the irritability
of Clione ; but he did not believe that it bored. He believed it to
be a true sponge. It has spiculee and tubes like a Halichondria.
With regard to the application of the author’s theory to the absorp-
tion of the columella of shells, he did not think it was necessary, as
the researches of Dr Carpenter and himself had shewn that the shells
of the mollusca were organic and susceptible of absorption. Dr
Carpenter had seen in the borders of the mantle of Terebratula, sili-
ceous particles, in the form ef spines. It was not necessary that the,
granules should be silex, as any hard substance would be sufficient
for the purpose. He had seen Pholades in such a position in an
excavation as to render it impossible that they should have turned
round for the purpose of boring. Mr Jeffrey stated that he had ob-
served that the tongues of many forms of mollusca were constantly
renewed in the manner mentioned by the author, as occurring with
the siliceous granules. The President drew attention to a fact stated
by Mr Osler, in his paper in the Philosophical Transactions, on the
boring of molluscs, that, in one instance, he had observed that the
Sawicava rugosa, in boring through a calcareous rock, had been ar-
rested in its course by a layer of argillaceous matter, thus lending
great support to the solvent theory.—(Atheneum, No. 1086,
p. 842.)
To the Editor of the Edinburgh New Philosophical Jowrnal.
Buair Loaixz, July 17, 1848.
Sir,— My attention has been turned, by Sir GrorGE MACKENZIE, to the fol-
lowing sentence in my paper on the Parallel Roads of Lochaber, published in
your last Number: ‘‘ No attempt, besides, is made, according to this theory, to
shew why the various shelves should be expected to stop short at the parti-
cular places where, by observation, they are found to do so ;” and to the follow-
ing one in his paper published in your Number for October 1847 to January
1848: ‘I may here remark, that the shelves should be found to terminate near
to the locality where it would appear the waters continued to be greatly agi-
tated ; and this is seen to be the case.”
Now, although, with all personal respect for Sir GrorGE MACKENZIE, and
with no wish to detract from the merit of his paper, it appears to me that he
does not develop the idea contained in the remark just quoted, or support it
sufficiently by reference to the “various shelves” and the “particular places
where, by observation, they are found to terminate ;” and although I conceive
it to be incompatible with the occurrence of the shelves in certain places where,
by observation, they are found to exist ; yet, as my sentence would imply, what
J did not mean, that he had not referred to what he conceived might be a cause
for their termination, I feel it right, by directing the attention of your readers
to what is quoted above from his paper, to correct any impression to that effect
which my sentence—through inadventence not expressed with sufficient care—
may have produced on their minds. I am, Sir, your obedient servant,
JAMES THOMSON Jun.
( 405 )
List of Patents granted for Scotland from 22d June 1848 to
22d September 1848.
1. To Prerre Ormanp Le Comte pr Fonrarnemorrau, of No. 4 South
Street, Finsbury, English and Foreign Patent Office, “ certain improve-
ments in the process and machinery for making, uniting, and in pre-
serving, metallic and other tubes or pipes,” being a communication from
abroad.— 26th June 1848.
2. To JosepH Wuee er Rocers, of Nottingham Street, in the city of
London, civil engineer, “certain improved methods and machinery for
the preparation of peat as fuel, and in combination with certain sub-
stance as a compost or manure.” —26th June 1848.
3. To Greorce Beartiz of Edinburgh, builder and wood-merchant,
“an improved air spring and atmospheric resisting power.”—29th June
1848.
4. To Tuomas Datron, of Coventry, silk-dyer, “ improvements in the
manufacture of fringes, gimps, and bullions.”—29th June 1848.
5. To Freprrick Witt1am Mowsray, of Leicester, spirit-dealer, ‘‘im-
provements in machinery for the manufacture of looped fabrics.” —29th
June 1848,
6. To Cuartzs Low, of Roseberry Place, Dalston, in the county of
Middlesex, gentleman, ‘improvements in the manufacture of copper.” —
29th June 1848.
7. To Marruew Townsenn, of Leicester, in the county of Leicester,
framework-knitter, “ improvements in the manufacture of looped or
knitted fabrics.”—29th June 1848.
8. To Ricnarp Wricuton, of Lower Brook Street, Grosvenor, in the
county of Middlesex, gentleman, “ improvements in apparatus to be ap-
plied to railway carriages and engines.”—3d July 1848.
9. To Ricwarp CrarK Burteicn, of Featherstone Buildings, in the
county of Middlesex, “ improvements in burners for obtaining or pro-
ducing light and heat, and in apparatus to be used therewith.”—6th
July 1848,
10. To Sypyry Epwarps Morse, of Ampton Place, Gray’s Inn Road,
“improvements in the manufacture of plates or surfaces for printing or
embossing.” —10th July 1848.
11. To Jonn Martin, of Killyleagh Mills, in the county of Down,
Ireland, manufacturer, “ improvements in preparing and dressing tow and
other fibrous substances, and in the machinery to be used for such pur-
poses.” —14th July 1828.
12. To Roser Hearn, of Heathfield, near Manchester, in the county
of Lancaster, gentleman, “ certain improvements in the method of apply-
406 List of Patents.
ing and working friction-brakes to engines and carriages to be used upon
railways.”—18th July 1848. .
13. To Atexanper M‘Doveat, of Longsight, Lancashire, chemist,
“improvements in the manufacture of glue, and in treating products ob-
tained in the manufacture of glue.”—18th July 1848.
14. To Jonatuan Amory, of Albemarle Street, in the county of Mid-
dlesex, gentleman, “a certain new and useful improvement in steam-
boiler furnaces,” being a communication from America.—19th July 1848.
15. To James Narizr, of Shacklewell Lane, in the county of Middle-
sex, operative chemist, “improvements in smelting copper and other
ores.” —26th July 1848.
16. To Joun Mitter, of Henrietta Street, Covent Garden, London,
gentleman, “a new system of accelerated menatirite locomotion, even by
animal impulsion, for every species of transport machines, acting by
means of wheels, whether on land or water.”-—27th July 1848.
17. To Georce Emmert, of Oldham, in the county of Lancaster,
civil engineer, “‘ certain improvements in the manufacture of fuel, and in
the construction and arrangements of furnaces, flues, boilers, ovens, and
retorts, having for their object the economical application of calorie in
the manufacture of gas for iliumination. and the consumption of smoke
and other gaseous products.” —28th July 1848.
18, To Cuartes Wittiam Sremens, of Manchester, engineer, “ im-
provements in engines to be worked by steam and other fluids, and in
economizing heats.”—31st July 1848.
19. To ALexanper Trstup pE Breaurecarn, of Paris, engineer, “ im-
provements in generating steam, and in the means of obtaining power
from steam engines.” —31st July 1848.
20. To Henry Hicuron, of Rugby, in the county of Warwick, clerk,
Master of Arts, and Epwarp Hicuron, of Regent’s Park, in the county
of Middlesex, civil engineer, “ improvements in electric telegraphs.”—
31st July 1848.
21. To Tuomas Marspen, of Salford, in the county of Lancaster,
machine-maker, “improvements in machinery for dressing or combing
flax, wool, and other fibrous substances.”—31st July 1848.
22. To James Warren, of Montague Terrace, Mile-end Road, in the
county of Middlesex, gentleman, and Wittovcusy THropatp Monzant,
of St James’ Terrace, Blue Anchor Road, Bermondsey, in the county of
Surrey, gentleman, “ improvements in the construction of bridges, aque-
duets, and roofings.”—2d August 1848.
23. To Jean Napoteon Zerman, of Greenwich, in the county of Kent,
Captain in the French Navy, “ improvements in ships and other vessels.”
8th August 1848.
in an
List of Patents. 407
24. To Wiru14Mm Brinces Apams, of Adam Street, Adelphi, in the county
of Middlesex, engineer, carriage-builder, and contractor, ‘‘ certain im-
provements in the construction of wheel-carriages and locomotive engines,
and also in roads or ways.”—S8th August 1848.
25. To JosrrH Srupson, of the city of Manchester, civil engineer, and
James ALFrrep Surpron, of the same place, engineer, “ certain improve-
ments in steam-engines.’”’—14th August 1848.
26. To Marruew Kirtiry, of Derby, engineer, “ improvements in
the manufacture of railway-wheels.”—15th August 1848.
27. To Joun Weston, of Portland Town, in the county of Middlesex,
machinist, ‘‘ certain improvements in obtaining and applying motive
power.” — 15th August 1848. “
28. To Samurt Tuornton, of Birmingham, in the county of Warwick,
merchant, and James Epwarp M‘Conne tt, of Wolverton, in the county
of Buckingham, ‘‘ improvements in steam-engines, and in the means of
retarding engines and carriages on railways, and in connecting railway
carriages or waggons together ; also, improvements in effecting a commu-
nication between one part of a railway train and another, by signals or
otherwise.’”’-—18th August 1848.
29. To James Porrir, of Edenfield, in the county of Lancaster, woollen
manufacturer, ‘‘ certain improvements in carding-engines, for carding wool
and other fibrous substances.”—18th August 1848.
30. To Samuet Less, of the firm of Hannah, Lees, & Son, of Park-
bridge, in the county of Lancaster, iron-manufacturer, “‘ certain improve-
ments in the manufacture of malleable iron.”—18th August 1848.
31. To Henry Henson Henson, of Hampstead, in the county of
Middlesex, gentleman, “‘ certain improvements in railway carriages and
waggons.”—21st August 1848.
32. To Auexanper Tourirr, of Hamilton Street, in the town of Paisley,
“certain improvements in railway turn-tables.”—23d August 1848.
33. To Ricuarp Suaw, of Gold’s Green, West Bromwich, in the
county of Stafford, railway-bar finisher, “ improvements in the manufac-
ture of iron into tyre bars, round bars, square bars, and flat bars, tee iron,
angle iron, and trough iron.”—23d August 1848.
34. To Isaac Tayxor, of Stamford Rivers, Essex, gentleman, “ im-
provements in preparing and engraving surfaces ; also in the construction
of cylinders adapted for engraving ; and also in machinery for printing
and ornamenting surfaces.”—28th August 1848.
35. To Grorce Watrer Pratt, of the city of Rochester, State of
New York, in the United States of America, gentleman, ‘* improvements
in the manufacture of printing ink.” 30th August 1848.
36. To Exizapera Daxin, of No. 1 St Paul’s Churchyard, in the city
of London, widow, as administratrix of the late William Dakin, “ im-
408 List of Patents.
provements in cleaning and roasting coffee, in the apparatus and machi-
nery to be used therein; and also in the apparatus for making infusions
and decoctions of coffee.”-—31st August 1848.
37. To Wittiam Dont, of Dodderhill, in the county of Worcester,
chemist, ‘“‘ improvements in obtaining certain metals from certain com-
pounds containing these metals, and in obtaining other products by the use
of certain compounds containing metal.”—5th September 1848.
38. To Ricuarp Mapiean, of Haverstock Hill, Hampstead Road, in
the county of Middlesex, civil engineer, and Joun Cooper Hannan, of 14
Lincoln’s Inn Fields, in the said county of Middlesex, civil engineer,
“ improvements in the manufacture of wheels for railways.”—5th Sep-
tember 4848.
39. To JoserpH Litur, of Manchester, in the county of Lancaster,
engineer, “ certain machinery or apparatus applicable for purifying and
cooling liquids, and for purifying, condensing, and cooling gases.” —7th
September 1848.
40. Tuomas Dunn, of the Windsor Bridge Iron-works, in Pendleton,
near Manchester, in the county of Lancaster, engineer, “ improvements
in the manufacture of railway wheels and axles, and in machinery and
apparatus for placing carriages on to a line of rails, for removing them
from one line of rails to another, and for turning them,’’—7th Gry ntember
1848.
41. To Wittram Swatn, of Pembridge, in the county of Worefond,
brick-maker, “certain improvements in kilns for burning bricks, tiles, and
other earthen substances.” —7th September 1848.
42. To Witi1am Epwarp Hottanps, of Regent’s Quadraat, in the
county of Middlesex, dentist, and Nicnonas WurTaker Grerne, of Wal-
ton Place, Chelsea, in the county of Middlesex, gentleman, “ a new ma-
nufacture of artificial fuel, in blocks or lumps.” —7th September 1848.
43. To Mary Campsett, of Longforgan, in the parish of Longforgan,
and county of Perth, in Scotland, widow, ‘‘ certain improvements in the
driving machinery of thrashing, grinding, and other mills ;’—being a
communication from her late husband, Alexander Campbell, before his
decease.—8th September 1848.
44, Atexanper Axiort, of Lenton Works, in the county of Notting-
ham, bleacher, ‘‘ improvements in apparatus connected with the working
of steam boilers ; also in spring apparatus, in balances, and in the means
of working breaks.”—11th September 1848.
(New Publications wi noticed in our neat Number.)
py Bes
%. x UB
INDEX.
Agassiz, Professor, on the analogy between the fossal flora of the
European Miocene, and the living flora of America, 180—
His glacial theory not abandoned, 396.
Agate, artificial colours of, described, 183.
Anderson, Thomas, M.D., on the constitution of the phosphates of the
organic alkalies, 169.
Anthracite coal, observations on, 181.
Asteriadz, fossil, of Britain, considered by Professor Edward Forbes,
379.
Atmosphere, researches on its constitution, 392,
Australia, its geology, 187.
Balfour, Professor, his notes of a botanical excursion to Braemar,
Bany, Jr Martin, his physiological discoveries, 194,
Bawtree, W. E., M.D., his description of some Sepulchral pits of In-
dian origin in North America, 86.
Beche, Sir H. de la, his account of the Proceedings of the Geolo-
gical Society of France, 155—Of Ireland, 312.
Beke, Dr, on the sources of the Nile in the Mountains of the Moon,
221,
Birds, ancient, of New Zealand, noticed, 196.
Boracite, amorphous, observations on, by Dr Karsten, 181.
Boucheporn, M., his biography of D’Aubuisson, 1, 205.
Brown, Dr R. E., on the source of motions upon the earth, and of
the means by which they are sustained, 148, 302.
Burat, Amédée, on the continuity of metalliferous repositories in
depth, 346.
Carboniferous period, its vegetation considered by Dr Hooker, 362.
Climate of Iceland, account of, 281.
Coal-formation of the Maremma of Tuscany, 369—Of Labuan, 331.
Coal of the Kangra Valley noticed, 183.
Coal-formation containing reptilian remains, 185.
410 Index.
Cofferdam, portable, for the use of harbours and other marine works,
described, 140.
Connell, Professor, on carbonate of copper and zine from Matlock,
36.
Copper mines of Burra-Burra, in Australia, noticed, 180.
Cotton, cultivation of, in India, 193.
Crystallised bodies, their structure considered by M. Baudrimont,
186.
Currents, on their transporting power, 189.
D’ Aubuisson, Engineer-in-Chief, &c., his biography, by M. Bouche-
porn, 1, 205.
Davy, Dr John. Observations on the urinary excrement of insects,
17—On carbonic acid as a solvent in the process of vegetation,
61—On Centipede and Helix oblonga, 383.
Diamond, on its oxydation in the liquid way, 388.
Diluvial or quaternary formation, observations on, by M. D’Archiac,
176.
Earth, source of motions upon the, by Dr R. E. Brown, 148, 302.
Ebelmen, M., on artificial hyalite and hydrophane, 187.
Ebony, remarks on, 190. :
Equus Hemionus, notice of, 194.
Ethnological Society of London, anniversary address to, for year
1848, delivered by Dr Prichard, 336.
Fauna of Sweden, changes in, 400.
Favre, A., Professor of Geology in the Academy of Geneva, his geo-
logical researches in the neighbourhood of Chamounix, 69. .
Fleming, Dr J., geological notices by, aly ale
Forbes, Professor Edward, on the distribution of the genera of
plants and animals, 175—On fossil British Asteriade, 379.
Forbes, Professor J. D., on the volcanoes of the Vivarais, 170.
Forests, preservation of, in the north-west provinces of India, 190.
Fyfe, Dr A., on the comparative value of different kinds of coal for
the purpose of illumination, 37, 267.
Glacial Theory not abandoned by Professor Agassiz, 396.
Glaciers of Iceland described by Sartorius von Waltershausen, 136
—Glacier strize, account of, 130.
Geographical distribution of Animals, by Professor Adams, 197.
Geology of the late Voyages of Discovery and Survey, 317.
Guyot, M. A., on the erratic blocks of the basin of the Rhine, 20.
Index. 411
Hall, Marshall, M.D., on the effects of certain physical and chemi-
cal agents on the nervous system, 252.
Heligoland, its present and former extent, 188.
Hooker, Dr, on the vegetation of the carboniferous period, as com-
pared with that of the present day, 362.
Hopkins, W., M.A., F.R.S., on the internal pressure to which rock
masses may be subjected, and its possible influence in the pro-
duction of the laminated stricture, 115.
Iceland, general view of its mode of formation, 102—its climate and
glaciers, 129, 281,
Indus, great inundation of, 893.
Karsten, Dr, his account of massive boracite, 181.
Kreatine, on its preparation, and quantity of, in the flesh of differ-
ent animals, by Dr Gregory, 172.
Lake Ontario, notice of the oscillation of its waters, 107.
Level of the Caspian and Dead Seas, 398,
Lochaber, its parallel roads or shelves described, 49.
~ Macquarie river, flood of, 395.
Malay Peninsula, its metalliferous deposits, 332.
Maremma in Tuscany, its coal-formation described, 369.
Marine shells in hills of drift and boulders, 398.
Medicines, remarks on their adulteration, 198.
Mercury, ores of, in the coal-formation of Saarbriick, 189.
Metalliferous repositories, their continuity in depth considered, 346.
Miller, J. F., Esq., on the meteorology of Whitehaven, 376.
Molluscs, sounds emitted by, 401—+their boring in rocks, 401.
Nile, river, on its sources in the Mountains of the Moon, by Dr
Charles T. Beke, Ph. D., &c., 221.
Number of vertebrate, molluscous, articulated, and radiated animals,
399.
Ocean, its depth and saltness, 27.
Oxydation of diamond in the liquid way, 388.
Patents granted for Scotland from 3d April 1848 to 21st June
1848, 202—from 22d June to 22d September, 405.
Prichard, James Cowles, M.D., F.R.S., Corresponding Member of
the Institute of France, his anniversary address for 1848, read
to the Ethnological Society of London, on the recent progress
of Ethnology, 336.
Prizes, list of, offered by the Royal Scottish Society of Arts, 389.
412 Index.
Proceedings of Societies, viz., Royal Society of Edinburgh from De-
cember 1847 to March 1848, 169—Of Wernerian Natural
History Society, 174—Of the Geological Society of France,
155, 311—Of the Geological Society of Ireland, 312.
Publications, new, noticed, 199, 408.
Rain, its depth in some localities at different altitudes in Lanca-
shire, Cheshire, and Derbyshire, 392. :
Reptilian remains in the coal-formations, 185.
Rogers, Professors W. B. and R. E., on the decomposition and
partial solution of minerals, rocks, &c., by pure water, and
water charged with carbonic acid, 163—On the oxydation of
the Diamond in the liquid way, 388.
Salt, common, its amount in all the oceans, 398.
Sand-banks of Mount’s Bay, on their rapid diminution, 113.
Sea, its temperature at Spitzbergen, 178.
Silicification of plants and animals, observations on, 185,
Stevenson, Thomas, Esq., F.R.S.E., C. E., his account of a portable
cofferdam for the use of harbour and other marine works, 140.
Talus slopes, 398.
Tea, plantation of, in India, by William Jameson, Esq., 191.
Thomson, James, jun., M.A., Glasgow College, on the parallel
roads of Lochaber, 49—his Letter in regard to the parallel
roads of Lochaber, 404.
Volcanoes of Central France not in a state of activity in the time
of Julius Cesar, 119.
Waltershausen W. S., his general view of the formation of Iceland,
102—And observations on the glaciers and climate of Iceland,
129, 281.
Whitehaven, its meteorology considered, 374.
Whirlwinds at St Just, in Cornwall, 111.
END OF VOLUME FORTY-FIVE.
PRINTED BY NEILL AND COMPANY, EDINBURGH.
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