198 



EEPORT OF NATIONAL MUSEUM, 1920. 



BARTSCH, Paul. The bird rookeries 

 of i lie Tortugas. 



Rep. Smithsonian Inst., 

 1917, (1919), pp. 469- 

 ."00, pis. i-38t 



Critical remarks on Philippine 



Island land shells. 



Proc. Biol. Soc. Wash- 

 ington, vol. 32, Sept. 

 30, 1919, pp. 177-1S4. 



The Philippine Island land 



shells of the genus Platyraphe. 



Journ. Washington Arm!. 

 ffci., vol. '•>. no. 24, 

 Deo. 19, 1919, pp. 

 049-655. 



Two new laud shells from Cal- 

 ifornia. 



I'roc. Biol. Soc. Wash- 

 ington, vol. 32, Dec. 

 31, 1919, pp. 247, 248. 



Cerion Breeding experiments. 



Carnegie Inst, of Wash- 

 ington, Year Bool;, No. 

 18, 1913 (1929) pp. 



3-r..-), pis. l-r.9. 



Birds observed en the Florida 



Keys and the southern end of the 

 mainland of Florida in 1019. 



Carnegie Inst, of Wash- 

 ington, Year Bool-, No. 

 IS, 1919 (1920) pp. 



205-210. 



Explorations and Cerion 



studies on the Florida Keys. 



Smith Misc. Colls., vol. 

 72, no. 1. May 8, 1920. 

 pp. 41-47, text figs. 

 42-40. 



Abstract of address: "Our 



poison-gas detector and how it was 

 discovered." 



Journ. WasJrington .ley/. 

 ScL, vol. 10, uo. 10, 

 May 19. 1920, p. 309. 



BEAN, Barton A., and Alfred C. 

 WEED. Notes on a collection of 

 tishes from Vancouver Island, B. G. 

 Trans. Royal Soc. Can- 

 ada, hcv. 3, vol. 13, 

 1920, pp. 09-83. pis. 

 1-4. 



BELL, Maky M. (See under Maynard 

 M. Metcalf.) 



BENT, Arthur Cleveland. Life his- 

 tories of North American diving 

 birds, order Pygopodes. 



Bull. V. S. A«L Mils., 

 No. 107, Aug. 1, 1919, 

 pp. i-xiii, -1—245, pi;. 

 1-55. 



BLAKE, S. F. The genus Hoinali<i:;i 

 in America. 



Contr. V. S. Xat. Herln, 

 vol. 20, pt. 7, Sept. 9, 

 1919, pp. 221-235. 



New South American sper- 



matophytes collected by H. M. Cur- 

 ran. 



Contr. U. S. Aa*. llcrb., 

 vol. 20, pt. 7, Sept. 9, 

 1919, pp. 237-245. 



A new Salvia from Guate- 



mala. 



I'roc. Biol. Hoc. Wash- 

 ington, vol. 32, Sept. 

 30, 1919, pp. 187, 188. 



New plants from Sinaloa. 



Proc. Biol. Soc. Wastt- 

 ington, vol. 32, Sept. 

 ::o. 1019. pp. 189-193. 



The anay, a new edible-fruited 



relative of the avocado.* 



Journ. Washington Acad. 



Sri., vol. 9, no. 16, Oct. 

 4. 1919, pp. 457-462; 

 text fig. 1. 



■ A preliminary revision of the 



North American and West Indian 

 avocados (Persea spp.). 



Journ. Washington Acad. 

 Set., vol. 10, no. 1, .Tan. 

 t. 1920, pp. 9-21, text 



llgs. 1, 2. 



Revision of the true mahog- 

 anies (Swieienia). 



Journ. Washington .\<ai. 

 Sci.. vol. 10, no. 10, 

 May 19, 1920, pp. 

 28©^297, text figs. I. 2. 



blanchard, fbank n. a black 



Pituophis. 



Coixia. nil. S1. Apr. 15, 

 1920, pp. 30-33. 



BONNK-WEPSTKR, J. and C. BONNE. 



Diagnoses of new mosquitoes from 



Surinam, with a note on synonymy. 



Insccutor Inscitiae Men- 



slruus, vol. 7, nos, 



10-12, Jan. 7, 1920, 



pp. 105-180. 



