GRAY'S MANUAL OF BOTANY 



NEW EDITION 



^I An Ululated flora of the Northern United States and Canada ea^ of the 96lh meridian. By A«a Gray, 



LL. D., late Professor of Natural Hiflory, Harvard Univ*rsity. Thoroughly revised and largely rewritten 



by Benjamin Lincoln Robinson, Ph. D., and Merritt L. Fomald, S. B. Qoth, 8vo. Ready soon. 



^1 The same. ToutiA's edition. Flexible leather, 12mo, iliuflrated. ^ 



MERICAN botanists, who have been impatiently 

 awaiting the revision of this indispensable work, will 

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 vised, and copiously illustrated edition, is now in 

 press. The revision has entailed years of work by 

 skilled specialists.. No effort or expense has been 

 spared to attain the highest degree of clearness, 

 terseness, and accuracy. The plant families have 

 been rearranged in a manner to show the latest view of their affinities, 

 and hundreds of species have been added to the flora. The nomencla- 

 ture has been brought into thorough accord with the important inter- 

 national rules recently established — a feature of great significance. 

 Indeed, the Manual is the only work of its scope which in the matter 

 of nomenclature is free from provincialism and rests upon a cosmo- 

 politan basis of international agreement. Nearly a thousand figures 

 have been added, and scores of brief and lucid keys have been intro- 

 duced in a manner which greatly simplifies the problem of plant identi- 

 fication. The work has been extended to include Ontario, Quebec, and 

 the maritime provinces of Canada. 



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The Bryologist 



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