178 
85. Hepwic, JouANNE. 
Theoria generationis . . . plantarum cryptogamicarum Linnaet 
1784 
First edition. 
A pioneer and important contribution to our knowledge of ferns, 
mosses, and other cryptogams. Hedwig is considered to be the 
founder of our scientific knowledge of Mosses (Bryology ). 
86. HILL, JoHNn. 
oe 
The British herbal... 1756. 
First edition. 
87. Hosack, Davin. 
Hortus Elginensis: or, A catalogue of plants, indigenous and 
exotic, cultivated in the Elgin botanic garden, in the vicinity of 
New-York ... 1811 
Second edition, enlarged. 
Rockefeller Center, New York City, is on the site of this garden. 
S88. Hormerster, WILHELM. 
On the germination, development and fructification of the higher 
cryptogamia ... trans. by Frederick Currey. 1862. 
The marvelous results of researches on the reproduction of the 
lower plants. This is one of the most important botanical works 
of all time, and helped lay the foundations of our knowledge of 
the alternation of generations through the plant kingdom. 
89. HumBotpt, ALEXANDER VON and AImME DE BONPLAND. 
Essai sur la géographie des plantes . . . 1805. 
Second edition. 
The foundation of the science of plant geography; the adapta- 
tion of plants to their environment, and the comparison of vegeta- 
tion of different latitudes. 
90. Humeotpt, ALEXANDER VON and AImME DE BONPLAND. 
[deen su einer Geographic der Pflanzen . . . 1807. 
German translation of their Essai sur la géographie des plantes 
. . This edition has a map which shows vegetation in relation to 
— 
altitude—perhaps the first ever published. 
