46

The Scientific and Technical
Department of the Imperial Institute

THE 8CIEXTIIIC A MJ TECIIXICVL J> E P A HT 31 EA T

OF TJIE I3IPEH1AL IJN^STITUTE.

1. The Executive Council of the Imperial Institute desire to direct attention to the
character of the work now carried on in an important Department ol the Institute, which
has been for several years in operation, and has, of late, undergone considerable extension.

d he Scientific and Technical Department of the Institute has been established to
acquire information by special enquiries and by experimental research, technical trials and
commercial valuation regarding new or little known natural or manufactured products
of the various Colonies and Dependencies of the British Empire and of foreign countries,
and also regarding known products procurable from new sources, and local products
of manufacture which it is desired to export. This work is carried out with a view to
the creation of new openings in trade, or the promotion of industrial developments.

2. In an extensive and well-equipped series of Research Laboratories, a numerous
staff of skilled Chemists, under the direction of Professor Wyndham R. Dunstan,
M.A., F.R.S., carry out the investigation of the chemical constitution and properties of
new dye-stuffs, tanning materials, seeds and food-stuffs, oils, gums and resiins, fibres,
timbers, medicinal plants and products; animal products, minerals and ores, soils, cements,
and various other products, with a view to their commercial utilization: Whenever
necessary these materials are submitted to special scientific experts, by whom they are
made the subjects of particular investigation or practical tests. Reports are also obtained
from technical or trade-experts in regard to the probable commercial or industrial value
of any such products, while full information is collected from official or other trustworthy
sources regarding the probable extent and cost of available supplies.

3. Appended to this Memorandum is a paper giving illustrations of work of the
above nature, which has been carried out for India and the Colonies in the Scientific
and Technical Department of the Institute. It will be seen that this work is quite
distinct in character from the services rendered respectively by the Commercial
Information Office of the Board of IVade, and by the. Botanical Establishment of the
Royal Gardens, Kew. But the work of this Department of the Institute may indeed
be regarded as an important adjunct to that accomplished by those Government
Establishments, especially in furnishing the results of chemical investigation and
technical trials which most generallv determine the commercial value of natural products.

4. All materials requiring scientific or technical examination, or commercial
valuation, should be submitted to the Institute for examination either by, or through,
the Foreign Office, the Colonial Office, the India Office, or the Board of I'rade. or
through the Colonial or Indian Government Authorities. Requests for the examination
of such materials may also be submitted by Public Commercial Bodies and Institutions
of the respective Colonies and Dependencies, or by the Representatives of H M..
Government in foreign countries.

I

5 - Reports on the results of enquiries or experimental investigations are supplied,
as a rule, without charge, when applied for as above directed, but, should special
expenses be incurred in connection with any such reports, or with the commercial
valuation of particular materials or manufactured products, which the Council do not
consider themselves warranted in meeting, a statement of such actual outlays will be
furnished, for repayment, when the reports are supplied to the Public Bodies or

Institutions concerned. Should an investigation or report of exceptional character be

»

asked for by a Government Department, an estimate of the attendant expenses will be
submitted, w’ith a view to ascertain whether authority for such expenditure will be given.

[The attention of those who are concerned in finding new markets for Indian and
Colonial products may be also directed to the collections of products exhibited in the
Galleries of the Imperial Institute, illustrating the material resources of the Colonies
and Dependencies of the Empire. They represent upwards of forty different countries,
and are open free to the public. On application to the Commercial Information Office
of the Institute, or to the Curators of individual Sections of the Collections, all available
information is furnished regarding any particular product exhibited in the Galleries, and
samples are supplied in special instances to merchants and others. Enquiries as to
possible supplies (and their probable cost) in any specific case, or for other special
information desired, are dealt with promptly, if made in waiting to the Honorary
Director of the Institute. The assistance of the Government Authorities of the
C'olonies is invoked to ensure that the Collections of natural and manufactured products,
and full information regarding their contents, shall be maintained up to the day].

F. A. Abel,

Hon. Director and Secretary.

Jtdy, 1901. of the Imperial Institute.

STAFF OF THE SCIENTIFIC AND TECHNICAL DEPARTMENT

OF THE IMPERIAL INSTITUTE.

1901.

Clii’fctor:

Professor Wyndham R. Dunstan, M.A., F.R.S., Sec.C.S.

Assistant Cbnntsffi:

Mr. T. a. Henry., D.Sc ,Lond., • Mr. E. A. Andrews.

(Salters* Company's Research Fellow).

Mr. Ernest Goulding, B.Sc.,Lond. Assoc.R.C.S.

Mr. Harold Brown. Mr. J. G. W. Brooker.

Special §.ssbfant Cbcnusts:

Dr. F. Luhn, Ph.D.,Heidelberg, Mr. H. H. Robinson, M.A,,Oxon.

Attached to this department is a staff of scientific, technical and commercial referees.

JUustrations of Scientific anb flecbnical IReports

mabe since 1806,

chiefly at the request of the Indian and Colonial Governments, based upon experimental
investigations conducted in the Laboratories of the Department, and on the opinions of
scientific, technical, and commercial referees.

INDIA.

(For further particulars see “Parliamentary Return of the Imperial Institute, Indian
Section, August, 1899.” Eyre & Spottiswoode, London).

Aconites.

A chemical examination has been made of the constituents of the principal varieties
of aconite indigenous to India. The medicinally active constituent has been examined,
its chemical composition and properties defined and its exact medicinal action ascertained.
Several papers on the subject have been already published (see Addendum) relating to
Aconittim ferox^ Aconitum- heterophylLiim, and Acomtmn Fischeri.

Tobacco.

A consignment of specially prepared tobacco was sent from Tirhoot for chemical
analysis and commercial valuation with a view to the satisfactory sale of the consignment.
The results of its analysis, together with a sample of the tobacco, were submitted to a
number of tobacco manufacturers and brokers and the consignment was afterwards sold
at a fair price.

Arrangements are now being made for a systematic examination of the different
varieties of tobacco grown in India with a view to the improvement of certain growths.

Opium.

A detailed enquiry is being conducted as to the quality of the opium produced in
the different opium districts of India. It originated in a request for a chemical
examination of opium specially grown in Jeypore, which proved to contain much less
morphine and far more narcotine than is usually present in the best Tuikey opium
medicinally employed in this country.

The same peculiarity is shown by most of the opium produced in India and the
question is being fully investigated with the view of ascertaining the cause of this
difference in Indian as compared with Turkey opium and the possibility of improving
the Indian product.

If Indian opium could be produced richer in morphine, there is no reason why it
should not be medicinally employed in Europe, instead of Turkey opium; and also used
as a source of morphine and odier alkaloids.

Podophyllum.

A complete chemical examination has been made of the constituents of the Indian
podophyllum {Podophyllum cuiodi). It has been shown in a paper communicated to
the Chemical Society (see Addendum) that its constituents are identical vith those of
American podophyllum [Podophyllum peltatimi) which is largely employed in medicine,
both in this country and throughout Europe. Ihe exact chemical nature of the
medicinally active constituent has been a.scertained and it is shown to be present to a
greater extent in the Indian product than in the American.

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Medical trial has completely substantiated the results of the chemical enquiry (see-
Addendum). It is proved that this plant, which is abundant in India, is a most efficient
substitute for the American podophyllum at present employed and the plant, and
medicinal preparations made from it, have now been included in the “Indian and
Colonial Addendum to the British Pharmacopoeia.”

Incidentally, it was discovered that the Indian plant also contains a yellow dye
which might be profitably employed in dyeing; being, in fact, identical with the colouring
matter of the well-known dye-stuff, ^^uercitron bark.

Jute.

An extensive series of samples of Jute, collected at different stages of growth and
treated under various conditions, are being investigated with the view of seeming
greater uniformity in the quality of Indian jute fibre.

Edible Gums.

A chemical examination has been made of several Indian gums which seemed likely to
be of commercial value as substitutes for gum arabic. The results, together with samples
of the gums, were submitted to brokers in this country who reported on their commercial
value and there have been already commercial enquiries for these gums by manufacturers.

Iron Ores.

Chemical analysis has been made of a number of specimens of Indian iron ores,
chiefly magnetite, obtained from the Salem district of Madras. The results have given rise
to an important discussion as to the possibility of the ores being profitably smelted in India.

Coal.

A chemical and technical examination has been made of representative samples -of
coal obtained from the principal coal districts of India, including many in which the
seams at present are not actively worked. A full description of the composition and
characters of the different varieties of Indian coal has been drawn up by Professor
Dunstan and issued as a separate paper by the India Office. It is also included in the
“Parliamentary Return of the Imperial Institute, Indian Section, August, i8gg.

Food-grains.

All the more important Indian food-grains are being submitted to a complete
chemical examination, chiefly 'by Professor Church, F.R.S., who has already made a
number of reports on the subject dealing with their composition and nutritive value.

Fibres.

A large number of Indian fibres have been chemically examined, and afterwards
examined by fibre experts. The results have been communicated to the Indian
Government so that suitable action might be taken in those cases in which it seems
desirable. Among these fibres are Ptne-apple^ Sabat., Tacca. Madm\ ban Re/ia, the
fibre of Phoenix palndosa, and the floss of Calotropis procej^a.

Timbers,

The mechanical properties of Pyinma wood have been carefully tested by Professor
Unwin, F.R.S , with a view to its application in engineering and building construction

Tanning Materials,

Systematic chemical examination is being conducted of the principal plants now
used, as well as those which seem likely to be applicable, in tanning. Those which
prove to be rich in tannin are afterwards submitted for trial in the tan-yards. In this
way a large number of astringent plants are being investigated and reports on the
tanning value of the following classes have already been made:— Myrobq.lans, Mangroves
and the Ccesalpinias.

At the instance of the Indian Government the question of the best metliod of
preparing extracts of tanning agents is being carefully enquired into, with the object of
rendering available the enormous supply of astringent plants which are abundant in the
forests of India.

Much Interest in this matter has been taken by tanners in this country and the
whole subject promises to be a most important one from a commercial point of view.

Edible Oils.

An extensive series of samples of the principal edible oils of India having been
made under the direction of Dr. Watt, each oil^has been subjected to systematic
chemical examination and compared with oils of the same type which command a ready
sale in this country. The composition and chief properties of these oils have now been
put on record (see Addendum) and many of them are likely to be commercially important.

Dye-stuffs.

The principal Indian dye materials are being investigated with the assistance of
Professor Hummel and Mr. A. G. Perkin, of the Dyeing Department, Yorkshire College,
Leeds. An account of the dyeing properties of Delplnnium Zahl, has already been
given whilst the constituents of “ Kamala” have been investigated and a description of
its adulterants provided, which it is hoped will lead to the export from India of this
dyeing material in a purer condition.

Medicinal Plants.

It is most important that the numerous plants abundant in India and held there in
high repute as medicinal agents, should be completjply investigated, both as regards their
principal constituents and their medicinal value. It has been shown from an examination
of an Indian henbane, Hyoscyamus nmitctts, that this plant contains a valuable alkaloid
(hyoscyamine) in a form in wdiich it can be more readily isolated than from the other
plants which are now resorted to for this purpose (see Addendum).

The constituents of Indian hemp are also being examined with the object of
ascertaining the cause of, and, if possible, oi providing a remedy for, the rapid deterioration
in quality which this drug undergoes when stored.

A number of samples of Indian kino have been examined and reports as to their
commercial value obtained. Suggestions have been made for the better collection and
export of the drug to this country.

India Rubber and Gutta Percha.

A chemical examination is being made of the constituents of the latices which
furnish these products and of similar latices, possible substitutes for India rubber and
gutta percha. A cdiemical examination has been made, and commercial valuation
obtained of various samples of rubber produced in India, wdth a view to their improvement.

Minerals.

A number of samples of mica have been forwarded from Jeypore for the purpose of
ascertaining their fitness for the various purposes for which mica is industi ially employed.
The samples were judged to be inferior and the authorities of Jeypore have been provided
with a complete statement of the quality and character which mica should possess in
order to. command a satisfactory price in the English market.

A large number of specimens of limestones, chiefly from Madras, have been submitted
to examination in order to determine their fitness for use in the smelting of iron.

CANADA.

Canadian Honey.

This honey wms chemically examined and compared with the best honey sold in the

English markets, in order to estimate its suitability for sale in this country. 1 he result
was not wholly favourable, and defects in the product were pointed out to the Board of
Ao-riculture. These have now been remedied and large shipments have since been
made to this country.

Sweet Clover Fibre.

A sample of this fibre, stated to be derived from Melilotus alba, or sweet clover,
which is very plentiful in some districts of the Province of Quebec, was submitted by
the Minister of Agriculture, and chemically examined in the Department, and also by
fibre experts. The valuable properties of the fibre were pointed out and suggestions
made for its utilisation.

Methods of Grading wheat.

A memorandum on the elaborate methods in use on the Continent in grading and
analysing wheat was drawn up for the guidance of Canadian millers who had applied
for the information.

Canadian Graphite.

Several samples of graphite were submitted to brokers for valuation on the basis
of the results of chemical analysis. They proved to be inferior to the graphite at
present obtained from Ceylon.

Canadian Felspar.

A sample from a new deposit of Canadian felspar was analysed and shown to be
soda felspar. The material was next successfully tried in several potteries, and
consignments of the felspar have since been exported to this country.

Canadian Mica.

A report on the special characteristics and commercial value of Canadian ambei
mica and its application for electrical purposes.

Canadian Sumach.

The chemical constituents of this plant, which is abundant in Canada, have been
examined and its value as a tanning agent determined by actual trial in a large tannery.
The results w’ere in some respects very satisfactory, and a number of suggestions were
made as to the cultivation and preparation of the plant for use in tanning. The report
was illustrated with samples of leather tanned with the sumach.

GRENADA.

, Fibres.

Report on the quality and uses of three fibres from Grenada, Agave rigida,
Sansevieria zeylamca and Furcrcea gigantea.

BRITISH GUIANA.

Timbers.

Report on mechanical tests, carried out at the Central Technical College, by
Professor Unwin, F.R.S., of thirteen different timbers from British Guiana.

Goupia Tomentosa.

Report on the constituents of the w*ood of Gotipia tomentosa. The use of this hard
and valuable wood is interfered with by its very offensive odour. This was shown to be
due to the presence of certain volatile organic acids which can be dissipated by heating.

JAMAICA.

Timbers.

Report bv Professor Unwin on the mechanical tests of a series of twenty-four of
the principal timbers 6i Jamaica,

MONTSERRAT.

Timbers.

Report by Professor Unwin on the mechanical tests of two timbers from Montserrat.

CAPE OF GOOD HOPE.

Wines.

Report on the analysis of selected samples of Cape wines. A chemical analysis
was made of these wines and they were then submitted to an expert. The causes of
the defects were ascertained, remedies were.suggested and recommendations made for
the improvement of Cape wines so as to render them more readily saleable in Europe.

Timbers.

Report by Professor Unwin on the mechanical tests of twenty-five Cape timbers.

NATAL.

Shale.

Report on the chemical examination of a shale supposed to be suitable for the
production of oil and gas.

Acacia Woods for Pulp-manufacture.

Report on the suitability of the wood of two species of acacia (A. dealbata and
A. mollissima) for conversion into wood-pulp for paper-making. These woods were
converted into pulp by the two principal processes in use for this purpose and commercial
valuations of the wood and pulp were obtained.

Medicinal plants.

The constituents of a purgative plant were examined and shown to resemble those
of Jalap.

Timbers,

Report by Professor Unwin on the mechanical tests of six Natal timbers.

Ash of Natal Aloes.

A report on its composition and possible uses.

India Rubber.

Report on the chemical properties and commercial value of a sample of india rubber
produced in Zululand.

NEWFOUNDLAND.

Haematite.

Report on the composition of two samples of haematite iron ore from Newfoundland.
The producers were brought into communication with iron manufacturers in this country.

Coal and Chrome Iron Ore.

Report on the composition of samples of coal and chrome iron ore from Newfoundland.

Steatite.

Report and analysis of a sample of a new variety of steatite. This sample was
submitted to buyers of the mineral, in order to draw attention to the existence of valuable
deposits in Newfoundland.

TRINIDAD.

Carapa Oil.

Carapa oil is extracted from the nuts of a tree abundant in the West Indies. A
full report on its chemical composition and technical value was furnished.

Sisal Fibre.

Report on the comparative value of a sample of sisal fibre grown experimentally in
the Royal Botani«*Gardcns, Trinidad. ^

Chione Glabra.

The bark of Chione glabra is used in Trinidad as a drug. The precise nature of the
active principle was determined, and this constituent was afterwards prepared artificially.

WINDWARD ISLANDS.

Groo-sfroo Fibre.

Report on the composition, quality and uses of groo-groo fibre, grown in the
Botanical Gardens, St. Vincent.

BRITISH CENTRAL AFRICA.

Minerals.

Report on the analysis and teclmical examination of coal discovered in the West
Shire district. This coal proved to be of excellent qi:ality.

Report on the analysis and technical examination of two samples of coal from
Nyasaland.

Report on a sample of washed sand, which proved to be titaniferous magnetic iron
oxide, and on some pieces of rock believed to be auriferous, also on a further sample of
coal from North West Nyasaland.

Report on a sample of sand, and on volcanic rock.

Report on two collections of pyritous and ferruginous minerals.

Report on a specimen of rock-ciystal. This was stated by experts, to whom it was
submitted, after chemical examination, to be a brilliant specimen of this material, which
is largely used in making optical instruments.

Report on a sample of crystal This proved to be Iceland spar, good specimens
of which are greatly sought after by manufacturers of optical instruments. Suggestions
were made with reference to the collection and selection of this material.

Fibre.

Report on a sample of fibre from an indigenous plant.

SOMALILAND.

Samp]^es of mica have been submitted to examination and commercial valuation.

NEW ZEALAND.

Minerals.

Reports on samples of iron ore, limestone and haematite.

Report on a specimen of greenstone.

Reports on samples of jet and jasper.

Report on the suitability of samples of sand and clay for glass-making, by chemical
analysis, and examination by experts.

FIJI.

Report on a sample of bark as a possible substitute for sassafras.

Report on a sample of fibre.

Report on a sample of cil.

VICTORIA.

Perfumes.

Report on the results of the preliminary chemical examination of a series of essential
oils-and essences from^the Government Flower Farm, Dunolly.

Fibres.

Report on a series of thirty-two fibres grown experimentally in the Melbourne
Botanical Gardens.

Meat Extract.

Report on the examination of a sample of meat extract.

Coal.

An examination of three samples of brown coal.

TASMANIA

t

Timbers.

Report by Professor Unwin on the mechanical tests of three timbers. '

WESTERN AUSTRALIA.

^ Water.

Report on the analysis of three samples of water taken from the Perth Station
Yard Bore.”

Coal.

Report on the analysis and technical examination of coal from the Wallsend Colliery
of the Collie Coal Field.

NEW SOUTH WALES.

Cotton.

Report on the properties and commercial value of cotton grown in New South
Wales, proving that most satisfactory cotton can be produced in the Colony.

. Sisal Fibre.

Report on the composition and commercial value of sisal fibre grown in New South
Wales. This report was very favourable.

Meat Preservative.

Report on the value of an antiseptic material proposed for use on the large scale in
the preservation of meat.

Leather.

Report on the character and commercial value of leather tanned in New Soiiffh Wales.

QUEENSLAND.

Hides, Skins and Leather.

These samples were received through the Agent-General from the Department of
Agriculture at Brisbane, with a request that a report should be obtained on the
commercial value of the skins, which had been cured by a special process. In order to
test the efficiency of the curing process, samples of hides and skins were tanned, and
the leather so produced, submitted to experts. A detailed report on the value of the
process and of the leather produced was furnished, with the opinions of leather experts

and brokers,

Australian Leather.

Report on the market in this country for various types of Australian leather.

Divi-Divi Pods.

The pods of this plant (Cmalpinia coriaria) are used in tanning. The Queensland
sample was analysed and found to be of excellent quality, and was highly valued by the

brokers to whom it w-as submitted.

*

Wine. '

Report on samples of wine produced in the Colony. **

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Fibres.

Report on the composition and uses of the fibres of Hibisms heteropkylla and
Hibiscus sabdariffa^ grown in Queensland.

Timbers.

Report by Professor Unwin on the mechanical properties of seven timbers.

BRITISH HONDURAS.

Timbers.

Report by Professor Unwin on the mechanical tests of fifteen timbers from British
Honduras.

HONG KONG.

Tung Oil.

Report on the composition and properties of tung oil (Chinese wood oil).

CEYLON.

Timbers.

Report by Professor Unwin on the mechanical tests of twenty-two of the principal
Ceylon timbers.

Kekuna Oil.

Report on the chemical composition and medicinal action of this oil.

Cocoa Nut Oil.

Report on the chemical composition of a sample purified by a special process.

EGYPT.

Poisonous and Medicinal Plants.

An enquiry into the nature of the poison of an Arabian vetch (Lohis arabicits).
This was proved to be due to prussic acid formed from a new glucoside present in this
plantj which has been named lotusin (see Addendum). This glucoside disappears as the
seeds ripen, when the plant becomes non-poisonous and can be used as fodder.

An examination of the alkaloid contained in Hyoscyamus muticus and Datura
Stramomzim grown in Egypt (see Addendum). Both these plants, the former especially,
are shown to be valuable commercial sources of the alkaloid hyoscyamine and are now
being exported to this country.

F. A. Abel, Wyndham R. Dunstan,

Hon. Dzrector and Secretary Director of the Scientific and Technical

of the Imperial Institute. Department of the Imperial Institute.

July, 1901.

i

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ADDENDUM.

*

LIST OF THE PRINCIPAL PAPERS COMMUNICATED TO
SCIENTIFIC SOCIETIES on subjects arising out of the above-mentioned and
other enquiries conducted in the Scientific and Technical Department of the
Imperial Institute: —

A chemical investigation of the constituents of Indian and American I odophyllum,
(Podophylhim einodi and P. peltatum). By Professor W. R. Dunstan, F.R.S., and
T. A. Henry, B.Sc.,Lond. (Transactions of the Chemical Society, 1898).

Physiological action and Therapeutic properties of Podophyllin, with special
reference to Indian Podophyllin. By H. W. G. Mackenzie, M.D., P.R C.I and
A. E. Dixon, M.B. (Edinburgh Medical Journal, November, 1998).

Occurrence of hyoscyamine in the pJyoscyamus mtUicus of India. By Professor W. K.
Dunstan, F.R.S., and Harold Brown. (Transactions of the Chemical Society.1899).

Occurrence of orthohydroxyacetophenone in the volatile oil of Cliione glabra. By
Professor W. R Dunstan. F.R.S., and T. A. Henry, B.Sc.,Lond. (Transactions of
the Chemical Society, 1898).

The volatile constituents of the wood of Goupia tomentosa. By Professor W. R.
Dunstan, F.R.S., and T. A. Henry, B.Sc.,Lond. (Transactions of the Chemical

Society, 1898).

The action of alkyl haloids on aldoximes and ketoximes. By Professor W. R.
Dunstan, F R.S., and E Goulding, B.Sc.,Lond. (Transactions of the Chemical

Society. 1897.

The Pharmacology of Aconitine, Diacetylaconitine, Benzaconine and Aconine
considered in relation to their chemical constitution. By Professor j. T. Cash, F.R.5.,
and Professor W. R. Dunstan, F.R.S. (Philosophical Transactions of the Royal

Society, 1898).

Contributions of our knowledge of the Aconite Alkaloids. Part XIV. On
Pseudaconitine. By Professor W. R. Dunstan, F. R.S., and F. H. Carr. (Transactions
of the Chemical Society, 1897).

Report on the chief physical and chemical characters of a series of Indian Edible
Oils. By A. W. Crossley, Ph.D., D.Sc,, and H. R. Le Sueur, B.Sc.,Load.
(Journal of the Society of Chemical Industry, December, 1898).

The nature and origin of the poison of Lotus arabicus. By Professor VV. R.
Dunstan, F.R.S., and T. A. 'Henry, B.Sc.,Lond. (Proceedings of the Royal Society,

1900 and 1901).

The alkaloid of Hyoscyamits maitims and of Datura Stramonium grown in Egypt.
Bv Professor W. R. Dunstan, F.R.S., and Harold Brown. (Transactions of the
Chemical Society, January, 1901).

The action of alkyl haloids on hydroxylamine. Formation of substituted hydroxyl-
amines and o.\aniines. By Profes,sor VV. R. Dunstan, F.R.S., and E. Goulding, B.Sc.
(Transactions of the Chemical Society, 1890).

The action of hydrogen peroxide on secondary and tertiary aliphatic amines.
P'ormation of alkylated hydroxylamines and examines. By Professor W. R. Dunstan.
F.R.S., and E. Goulding. B.Sc. (Transactions of the Chemical Society, 1899).

Contributions to our knowledge of the Aconite Alkaloids. Part XV. — On japacon-
itine and the alkaloids of Japanese aconite. By Professor W. R Dunstan, F.R.S , and
H. M. Read. (Transactions of the Chemical Society, 1899).

Note on the hide powdei^filter- By R. L. jenks. (Journal of the Society of
Chemical Industry, June, 1896).

The Pharmacology of Pseudaconitine and Japaconitine considered in relation to
that of Aconitine. By Professor j. T. Cash, P'.R.S,, and Professor Wyndham R.
Dunstan, F.R.S. (Proceedings of the Royal Society,-1901).

The Pharmacology of Pyraconitine and Methylbenzaconine considered in relation

*

to their chemical constitution. By Professor J. T. Cash, F. R.Sand Professor Wyndham
R, Dunstan, P'.R.S. (Proceedings of the Royal Society, 1901).