936 DONATIONS AND EXCHANGES. 



U.S. Department of Agriculture (continued) — 



Farmers' Bulletin, Nos.llO, 140, 165, 168, 196, 227, 249, 254, 

 260-269, 272, 273, 275, 277, 283, 284, 290(1900-07). 



Library. Bulletin, No.61(1906). 



0/fice of Experiment Stations. Annual Report for Year ended 

 June 30th, 1905(1906): Bulletin, Nos.45(r.), 121, 136, 162, 

 167-172(r.), 174, 176-177, 179, 180(1898-1907): Circular, 

 Nos.34(r.), 51 (r.), 58, 65, 67-72(1906-07): Experiment 

 Station Record, xvii., 10-12, Subject index, &c,; xviii.1-7 

 (1906-07): Two Separates, "Separate No.9" and "Dietary 

 Studies, (fec."(1902-05). 



Office of Public Roads. Bulletin, No.28(1907): Circular, No. 

 53(1906). 



Office of the Secretary. Circular, Nos.l9-20( 1906). 



Porto Rico Agricultural Experiment Station. Bulletin, Ko.7 

 (1906). 



Year Book, 1906(1907). 



U.S. Geological Survey — 



Bulletin. Nos.275, 277-286, 288-293, 295, 297-299, 301-303, 



305-307, 310(1896-07). 

 Mineral Resources of the United States, 1905(1906). 

 Monographs. 1.(1906). 



Professional Papers. Nos.46, 50-52, 54, 55(1906). 

 Twenty-seventh Annual Report, 1905-06(1906). 

 Water Supply and Irrigation Papers. Nos.155, 156, 158-164, 

 170,172-189(1906-07). 



U.S. National Museum — 



Annual Report for Years ending June 30th, 1905, and June 



30th, 1906(1906). 

 Bulletin. No.56 Part i.(1907). 

 Contributions from the U.S. National Herbarium, x.3-4; xi, 



(1906-07). 

 Proceedings. xxxi.(1907). 



Washington Academy of Sciences — 



Proceedings, viii. pp.l67-491,T.p.&c.; ix. pp.l-274(1906-07). 



