TREE 
U. 5. Geological Surwey. 1° Bul. N°S 195 à 207. 
2° Mineral Ressources 1901. 
3° Monograph. Vol. XLI. XLII. XLIIT. 
4° Annual Report. 1900-1904 (Part. I. II. III. IV.) 
1901-1902 (1 vol.). 
5° Professional Paper N° 1 à 8. 
6° Water-Supply and Irrigation Paper : N° 65 a 79. 
National Museum. 1° Report. for the Yar 1902. 
2° Bulletin of the... ? 
U. S. Departement of Agriculture. 1° North Ameri- 
can Fauna, N°. 
2° Yearbook of the U. S. Departement of Agricul ? 
3° Bulletin, N° 
4° Monthly Weater Revien. Vol. XXXI N°5 à 9 
5° Farmers Bulletin N° 57, 163. 
6° Annual Reports 30 june 1902. 
a) Some Problems of the Rural Common School 
y A. C. Truc; 
») Soil Surwey of Harford County, Maryland by 
W. G. Smith and J. O. Martin: 
&) The Changa, or Mole Cricket in Porto Rico 
»v O. W. Barret. 
d) Experiments on the Metabolism of Nitrogen, 
Sulphur and Phosphorus inthe human orga- 
nism by H. C. Sherman. 
e) Fruits and Kruit Products. Chemical and 
microscopical examination by W. D. Bigelow. 
[) Experiment Station Record. 
g) Th. Mongo in Porto N by C. N. Collins. 
h) Crop Reporter Vol. 4. N° 9 
Wien. K. K. Naturhistorisches Rn Jahresbericht 
für 1901. 
Winterthur. Naturf. Gesellschaft. Heft. IV. 
A 
