328 Scientific Intelligence. 
8. Remarks on the Genus Proterocrinus of Lyon and Casseday, 
by A. C. Weruersy. Journ. Cincinnati Soc. Nat. Hist., April, 
ei 
Revision of the Palwocrinoidea. Part red! The families 
Tehihyoorinides and Oyathocrinide; by Cuartus WacusMuTH 
FRANK SPRINGER. 153 pp. 8Vvo, with two sphitew Philadel- 
phic, 1879. Sth the Proceedings of the Academy of Natural 
Sciences, Nov. 4, 1879).—A very important contribution to the 
department of Fossil Nee 
10. Descriptions of New Species of Crinoids Fa the Kaskas- 
kia Group of the Sabcobbonthetors by A. C. Weruersy. Ibid., 
aie 1879.—Professor Wetherby, in these candle describes 
n detail from excellent specimens the genus Proterocrinus, and 
sehaval species of the remarkable crinoids referred to it. The 
_ that its nearest alliance is with Hucalyptocrinus. Four s 
8, P. bifurcatus, P. acutus, P. spatulatus and P. parvus are 
beautifully figured on one of the plates. 
Ill. Borany anp ZooLoey. 
1. Soluble Matter of Soil retained by Vegetation. fae three 
inches deep was placed in two glazed earthenware pans, 1 7 inches 
of 
in the Arch. Sci. Phys. & Nat. for Nov. 1879. Seeds of mus- 
tard, cabbage, and grains of retest without previous desiccation, 
enclosed i in ‘sealed tubes, sometimes mixed with metal filings t? 
ensure complete and rapid alvigeeation, were exposed to a tem 
ature of from to ° centi 
tw 
< ret Ma cold produced by the evaporation of liquid sulphurous 
acid; the seeds were allowed to regain the ordinary temperatut® 
of = er air without delay; then, on being sown, they germinated #7 
promptly and well as corresponding seeds not so treated. A. G — 
3. The Genus Ginkgo, now represented by the single Japan 
ese species, fist appears (accordi ng to Heer, in Arch. Sci i ee 
Nat., Dec. 1879), in a species, in a depos osit between 
Jurassic and Triassic, and in the Jurassic counted nine pen 
two of which extended an Bagheia to Spitzbergen, while a 
other seven along with one of the former inhabited easte 
