46 ANNUAL REPORT OF THE 
244. KoRNHAUSER, S. I.— A comparative study of the chromosomes 
in the spermatogenesis of Enchenopa binotata (Say) and 
Enchenopa (Campylenchia Stal) curvata (Fabr.). Arch. f. 
zellforsch., February, 1914, 12, p. 241-298, pl. 18-22. 
245. Parker, G. H.—A note on sex determination. Science, 6 
February, 1914, n. s., 39, p. 215-216. 
246. Parker, G. H. The locomotion of Chiton. Contrib. Ber- 
muda biol. station, April, 1914, no. 31, 2 pp. 
247. Parker, G. H. On the strength and the volume of the water 
currents produced by sponges. Journ. exper. zo6l., April, 
1914, 16, p. 443-446. 
248. Risser, J.— Olfactory reactions in amphibians. Journ. exper. 
z00l., May, 1914, 16, p. 617-652. 
249. SHoui, A. T.— Reactions of earthworms to hydroxyl ions. 
Amer. journ. physiol., July, 1914, 34, p. 384-404. 
BERMUDA BIOLOGICAL STATION FOR RESEARCH. 
CoNTRIBUTIONS: — 
27. CHESTER, W. M.— The structure of the gorgonian coral Pseudo- 
plexaura crassa Wright and Studer. Proc. Amer. acad. arts & 
sct., May, 1918, 48, p. 735-773, 4 pls. 
28. See p. 45, Contrib. Zoél. Lab., 240. 
29. Hitton, W. A.— The central nervous system of Tunica nigra. 
Zool. jahrb. Anat., December, 1913, 37, p. 113-130. 
30. Crozier, W. J.— Note on the pigment of a Bermuda nudibranch, 
Chromodoris zebra Heilprin. Journ. physiol., February, 
1914, 47, p. 491-492. | 
31. See supra, Contrib. Zodl. Lab., 246. 
32. See supra, Contrib. Zool. Lab., 247. 
-BLuE Hitt METEOROLOGICAL OBSERVATORY. 
OBSERVATIONS AND INVESTIGATIONS: — 
McApiz, ALEXANDER.— Introduction. 3 pp. 
Observations [with summaries for years 1886-1910]. 50 pp. 
McApre, ALEXANDER.—The founder of the Observatory. A review 
of the scientific work of Abbott Lawrence Rotch. 14 pp. 
WELLS, L. A.—Features of the twenty-five years observations. 3 pp. 
Brooks, CHarLtes F.— The ice storms of New England. 8 pp. 
2 pls. 
McAnpizs, ALEXANDER.— Introduction of new units at Blue Hill 
Observatory. 6 pp. 
Annals Astronomical observatory Harvard College, 1914, 73. 
