Botany and Zoology. 279 
soda 1:14—=100. Castor, according to Plattner, afforded silica 78-01, 
alumina 18°85, lithia 2°76, agreeing nearly with petalite in its alu- 
mina and silica. Still according to Plattner it contains no soda, and it 
afforded the ratio 1:6:27. We have not therefore as yet sufficient 
grounds for pronouncing them identical. 
2. On Humite; by M. RamMeEtsperc, (Ibid. vol. Ixxxvi, p. 413.)— 
Rammelsberg gives the following as the results of his analyses of the 
three varieties or types of Humite, (see this Journal, vol. xiv, p. 175.) 
Si Mg a Fe Fe 
L 3480 60-08 beac 2°40 — 8:47 = 100-75 
TL - "33:26 57-99 o-74 2°30 1:06 5-04 == 100-32 
TIL 3667 56°83 — 1°67 —. 261 == 97-78 
for HI, 36. ammelsberg shows farther the equality of atomic volume 
between Olivine and Humite, according with the similarity of crystalli- 
zation pointed out by Scacchi. 
8. Fossil Bones, probably Reptilian, from the Coal formation of 
Nova Scotia, discovered by Mr. Dawson and Sir Charles Lyell, (Bos- 
Tra 
Char y 
‘harles Lyell, in September last, in the interior of an erect fossil tree, 
re i ts 
‘tae Was much smaller, probably not more than 6 inches in length. 
_ nthe same roup of fossils are observed fragments of jaw-bones 
With conical teeth, and scul ptured dermal plates, probably parts of the 
Hane batrachian quadrupeds. There was also found associated with 
inet the shell of a Mollusk, apparently a pulmoniferous gasteropod, 
(Cyclostoma or Pupa?) a family of land shells, of which no represent- 
nves bad previously been met with in rocks of so high antiquity. 
IV. Borany anp Zoonoey. 
Moat, Grundziige der Anatomie und Physiologie der vegeta- 
“a le. Braunschweig, 1851; pp. 152, 8vo.—This is a sepa- 
le issue of an article by Prof. Mohl in Wagner’s Handwérterbuch 
iologie. i i 
kk. @: 
.~ Hermann Schacht, Die Pflanzenzelle, der innere Bau, und das 
— der Gewiichse. Berlin, 1852; pp. 472, tab. 20, roy. 8vo.—This 
latest and fullest general treatise on the whole subject of vegeta- 
@natomy and physiology; and by an author who has exhibited 
