172 
Description of the Tessarops , a new genus of Ame¬ 
rican spider. 
Dissertation on Atmospheric dust. 
Dissertation on the ancient Geology of the neigh¬ 
bourhood of New-York. 
Memoir on vegetable odours, and a classification of 
American scented plants. 
Description of about 60 new species of North Ame¬ 
rican quadrupeds of the genera Sciurus , Lynx , Felix, 
Cervus , Atalapha , Lemmus , Gerbilius , Canis, Mephitis , 
Mustela , &c. 
Memoir on the ancient Lake of the Hudson. 
Synopsis of many new genera and species of North 
American Polyps, Mollusca and shells. 
New natural families of plants. 
Florula lyncemontana, or of the Catskill mountains. 
Florula Azorica, or of the Azore islands. 
Memoir on some prevalent errors in Natural His¬ 
tory. 
Thoughts on the Mutations of the Earth. 
Description of three new diseases of plants, Sarcan- 
Alia, Sarcomelas and Phyllops . 
Memoir on the Duration of Plants. 
Memoir on Organic Arithmetic. 
New genera of North American plants. 
