~ 
322 Scientific Intelligence. 
dams across valleys and making lakes, and refers to a case at 
“Naina Tal in the Himalayas where a land-slip appears to have pro- 
duced this result. He points out, also, that they make bowlder 
deposits resembling those of glacier cone and sometimes cause 
a shallowing of channels and sea-borders which might be taken 
as evidence of an elevation of the land. tiie cites from a_ paper 
by Dr. Co ppinger in the Quarterly Journal of the Geologie 
Society of ie on (xxxvii, 245, 1881), about soil-cap slides over 
sloping satos of rock in western Patagonia, which carried 
along, besides trees and other plants of the s urface, “a moraine 
profonde” of rocks, stones and trunks of nen: filling valleys and 
lakes, that, after a removal by water of the finer part, became a 
deposit of bowlders piled on one another, in true glacier-made style. 
Handbuch der Botanik, von Pr ofessor Dr. N. J. ©. omic: 
Se 2 Biinde (648, 482 pp.), 8vo. Heidelberg, 1 
Pflanzenphysiologie. Hin rata des ofeoohait und 
Kvigfriosohids in der rk Soi von Dr. W. Prerrer, Professor an 
der Universitit Tubinge 2 Bande (383 u. 474 pp-), 8vo. 
Leipzig, Engelmann, 1881. 
Vorlesungen “iiber Pflanzenphysiologie, von Junius Sachs. 
(Professor an der Universitit a (991 pp.), 8vo. Leip- 
zig, Engelmann, 7. 
Traité de Botanique Van Tizauem, Professeur au 
ee Histoire a eatte (1656 pp-) 8vo. Paris, Librairie 
avy. 
sands Ju Botanik, herausgegeben von Professor Dr. A. 
ScueNk, unter mitwirkung, von Cohn, Detmer, Drude, Frank, 
Kienitz, Gerloff, sate eres (zu Lippstadt), "Sadebeck, u. & 
8vo. Breslau, Trewen . [Now publishing in parts which appe@? 
somewhat inroguany, as the first portion of an Encyclopedia of 
Natural 
hese a nie principal comprehensive works upon their respec 
tive pos facie which have appeared within the last few years. A 
treatise upon Pharmaceutical and Medical Botany by Luerssen 
rivals these in size and in carefulness of management throughout, 
ae cannot be described in detail in the present n notice. Neithe 
both for the Laie and special reader. It has altogether to? 
much mathematical physics in it for the former, and too little for 
the latter ; that | is, it stops just short of being what it could have 
been made ander a pir tok treatment. By a slight reser A 
ing 0 
rams which are nowhere explained, it would be a stimulatin _ 
handbook for a certain class of botanical students. But, a" — 
