Botany and Zoology. 473 
? 
—30°, or sometimes — he annual precipitation as rain and 
snow is from 25 to 30 inches. oil throughout the greater 
of Minnesota consists of glacial drift. rest covers the 
Andropogon furcatus, Chrysopogon nutans, bouteloua racemosa, 
and Stipa spartea: in wet ground Spartina eynosuroides and 
1 hay. 
cent of the plants growing without cultivation in the State are 
introduced species.” All this, and much other information we 
find in the well-arranged preface ; which, moreover, opens with a 
history of the various publications touching the Minnesota flora,’ 
rom Hennepin and Carver down to date. There is a good map, 
genera, and to 118 orders. The six largest orders are C 
sts Graminec, Leguminose, Rosacee, Ranunculacee. 
we 
curavit G. C. W. Bounenstec, Custos bibl. Soc. Teyleriane, 
arlem.—This elaborate and well-digested index and guide to 
botanical publications in periodicals is still kept up with spirit by 
