Hepartment,

REVIEWS AND BIBLIOGRAPHICAL NOTICES.

FAGET S SURGICAL PATHOLOGY.
. Continued.)

Mr. Paget embraces in his theory the doctrine of complemental
nutrition, first taught by C. F. Wolff, Hlustrating the subject as
follows :

“A great change in nutrition rarely takes place in a single
organ at a time; for example, the growth of the beard at the
period of puberty in man, the growth and perfection of the plum-
age of the bird at breeding time; but as in man, when the
dey -elopment of the genital organs is prevented, that of the beard

and-all other. external sexual characters ity a8. a —— a

hindered, so in birds, when the breeding season onds, and the
sexual organs pass oeatually into their periodic ee at once
the plumage begins to assume the pale aud more sober colors,
which characterizes the barreniess of winter.” He next refers
to certain Interesting specimens presented to the museum by Sir
Philip Egerton, showing the interesting fact, ‘‘ that if a buck be
castrated while his antlers are still ee with velt, their growth | ig

checked, they remain as if truncated, and irregular nodules of

bone project from their surfaces.” The fact is not, hitherto,
explained ; it is inexplicable, by believing that the materials which,
in the formation of these organs of external sexual character, are
removed from the blood, leave or maintain the blood in the state
necessary for the further development, growth and active function
of the proper sexual or reproductive organs.’ 7 “© The concurrent
development of the thymus gland and air breathing organs during
the body’s growth of the thyroid gland and the brain, Gistunees

— 10) 2
oe y .
: 156

Ee PRTC PS RSL RR DR ER EERE DS Re RHE SHRED Oe &

SCIENTIFIC DEPARTMENT.

2.—Monthly Mean of Temperature, Fahrenhett.

JANUARY.

189

YEAR.

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JARUAERY.

alive Humidity.

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