384 NOTICES or books. 



great extent rewritten. Its increased size (740 pages) is mainly owing 

 to the larger geographical area embraced in it, being here extended 

 southward so as to include Virginia and Kentucky, and westward to 

 the IVIississippi Eiver/' 



This important volume exhibits two principal features : firstly, the 

 increased number of species both of Phsenogams and Cryptogams 

 consequent upon additional geographical area included ; and secondly, 

 the very beautiful and numerous figures, executed, it would appear, by 

 Mr. Sprague, of the genera of Ferns, Mosses, and Hepaticae,' — thus 

 simplifying to a great extent the study of what must ever be reckoned 

 among the most beautiful of Nature's vegetable forms. These Plates 

 are nearly as valuable to the student of European as of American Cryp- 

 togamia, the genera of the two countries being very similar. 



The Preface contains some brief interesting notices on the geogra- 

 phical distribution of plants within the given area; and the time, Dr. 

 Asa Gray tells us, is not far distant " when, as the result, especially of 

 the labours and investigations of Prof. Tuckerman upon our Lichenes^ 

 of the Eev. Dr. Curtis upon our Fungi^ and of Prof. Harvey upon our 

 AlgcBy as well as of Messrs. SuUivant and Lesquireux upon our Mosses^ 

 all our Cryptogamia may be in a similar manner presented to the stu- 

 dent in the form of a supplementary volume, separate from that com- 

 prising the phsenogamous or flowering plants/* 



foUovrin 



Page 230, 7 hues from the bottom, dele (Plate XI. J. B) 



Page 231, line 19, and at line 25, for Tab. XL J. read XII. B, 



Page 231, line 7 from bottom, dele (Tab. XI. 5.)- 



Page 232, line 1, dele Plate XI. J5. and all tbat follows in that and the following Hne 



T'agc 257, at the end of line 7 add ^Tab. XTL y1\ 



