APPENDIX TO CATALOGUE OF PLANTS. 
H. elegans. , 
LIVERWORTS. 
Riccia natans. 
R. fluitans. 
Anthoceros punctatus. 
A. levis. a 2 
Marchantia polymorpha. 
Fegatella conica. 
Reboulia hemispherica. . 
Fimbriaria tenella. 
Mentzgeria furcata. 
Aneura palmata. 
A. multifida. 
Pellia epiphylla. 
Blasia pusilla. 
Chiloscyphus polyanthos. 
Lophocolea bidentata. 
Sphagneecetis communis. 
Jungermannia trichophylla. 
. setacea. . ‘ 2 
. connivens. 
. curvifolia. 
. bicuspidata. 
. divaricata. 
ey ye ey 
. setiformis. 
._M 
a 
* * 
* * 
* 
* 
Ss * 
J. barbata. . 
. intermedia. 
. Schraderi. 
. Taylori. 
. crenulata. 
ey ey ey 
- exsecta. . 
Scapania nemorosa. 
Plagiochila spinulosa. 
P. asplenioides. . 
P. porelloides. . ‘ 
Sarcoscyphus Ehrharti. 
Gymnomitrium concinnatum. 
Frullania Grayana. 
F. Tamarisci. . ‘ g 
F. Virginica. 
F. Eboracensis. . 
Lejeunia cucullata. 
Madotheca platyphylla. 
Radula complanata. 
Ptilidium ciliare. 
Trichocolea Tomentella. 
Mastigobryum trilobatum. . 
Lepidozia reptans. 
Calypogeia Trichomanis. 
APPENDIX D. 
THE RELATION OF GEOLOGY TO DISEASE, 
By G. W. Hawes. 
355 
Mr. J. T. Gardner, in his address before the American Public Health Association at 
Boston,* has drawn attention to the intimate connection between geology and health. 
He indicates that controlling causes of some of our most fatal diseases are to be found 
in local structural and lithological conditions, which are of even greater weight than 
the condition of the air. In some regions above the palisades of the Hudson malarial 
diseases are very prevalent. This region is underlaid by dense basaltic rocks, through 
* Boston, October 6, 1876. 
