° 
392 The Botanical Gazette. [September, 
marks to enable us to get our bearings, so that we may spy 
out the land and obtain some opinion of what there may be 
good or bad in it. 
The labors of Strasburger have been especially noteworthy 
in establishing an adequate morphological basis for the inter- 
pretation of cellular activity. If we were to point to a single 
work as particularly conspicuous in this connection, it would 
be his Zellbildung und Zelltheilung (1875), which introduced 
hardening and staining methods into the study of the cell, 
sibly, than among botanists. Great accuracy and a far clearer 
interpretation have been attained by the new methods, caus- 
ing a rapid accumulation of trustworthy facts regarding the 
parts of the cell, especially of the reproductive cell and its 
neighbors, and of the 
gators and valuable contributio 
the development of the metas 
ing changes. 
ns, especially in making know® 
permic embryo and accompany- 
