407 



Nela Research Laboratory. Abstract-bull., v. 1, no. 2. 

 New York Academy of Sciences. Annals, v. 27, p. 245- 



336; V. 28, p. 1-166. N.Y. 1917-18. 

 New York Public Library. Bull. 23, no. 8-12; 24, 1-7. 

 New York Zoological Society. Zoologica, v. 2, no. 6-10. 



Zoopathologica, v. 1, no. 3-5. N.Y. 1918. 



North Carolina. Geological Survey. Economic paper, 49. 

 Northrop, John A. A Naturalist in the Bahamas. N.Y. 



1910. 

 Oberlin College. Wilson bull., v. 31, no. 3-4; 32, no. 1-2. 



1919. 

 Ohio University. Journ. of science, v. 19, no. 8; 20, 1-6. 

 Smithsonian Institution. Bureau of American Ethnology, 



Annual report, no. 32. Wash. 1918. 



Bull. 59; 60, pt. 1; 64-65; 70. 



Tennessee. Geological Survey. Bull. 21-24. 

 Resources of Tennessee, v. 8, no. 2-4; 9, no. 



1-2. Nashville. 1918-20. 

 United States. Dept of Agriculture. Bull. 617, 737, 746, 



774, 785, 788, 793. Wash. 1919. 

 Experiment station record, v. 41, no. 7-9; 



42, 1-6. 



Farmers' bull. 1011, 1029, 1046, 1079. 



Journ. of agricultural research, v. 15, no. 13; 



17, 4-6; 18, 1-11, 14; 19, 1-6. 1918-20. 

 Yearbook, 1918. Wash. 1919. 



Geological Survey. Bull. 664, 668-9, 676-8, 683, 



685, 687-8, 691, 693, 698. 



Geologic folios, 200, 202-10. 1916-19. 



Mineral resources, 1917, I, 11-24, II, 23-35; 



1918, I, 1-9, II, 1-13. 



Professional paper, 104, 107, 109-10, 112-14. 



Water-supply paper, 411, 422, 427, 429, 436, 



440, 442-3, 446, 457, 485. Wash. 



Library of Congress. Report, 1918. Wash. 



National Museum. Annual report, 1919. Wash. 



Bull. 103, 107-108. Wash. 1919. 



Contributions from the National Herbarium, 



V. 20, pt. 6-9; 21; 22, pt. 1-2. Wash. 1919-20. 



Proc, V. 54. Wash. 1919. 



Wagner Free Institute of Science. Trans., v. 9, pt. 1. 



Annual announcement, 1919-20. Philad. 



Washington University, St. Louis. Studies, v. 6, no. 2; 

 7, no. 1. St. Louis, Mo. 1919. 



Westwood Astrophysical Observatory. Occasional scien- 

 tific papers, no. 1-2. Bost. 1917-19. 



