128 
Notices and Bihiiography 
(89) Rommel, G. M. & Phillips, E. F. Inheritance in the Female Line of Size of Litter in 
Poland China Sows. Proc. Amer. Phil. Soc, Vol. xlv, pp. 245 — 254. 1906. 
An abstract of this paper has appeared in Biometrika, Vol. v, p. 203. 
(90) Samtkr, M. Das Messen toter und lebender Fische fiir sj^stematische und biologische 
Untersuchungeii. Arch. f. Hydrobiol. u. Planktonkunde, Bd. ii, pp. 143 — 185. 1906. 
Describes a photographic method of measuring soft-bodied organisms, likely to 
be useful in many cases. 
(91) Schuster, E. The Promise of Youth and the Performance of Manhood. Eugenics 
Laboratory Publications, No. ill. (Dulau & Co., London.) 
(92) Shull, G. H. Elementary Species and Hybrids of Bursa. Science, N. S., Vol. xxv, 
pp. 590, 591. 1907. 
Preliminary discussion of the results obtained from rearing "over 20,000 pedigreed 
specimens of Bursa bursa-pastoris (L.) Britton." 
(93) Spillman, W. J. Colour Inheritance in Mammals. Science, N. S., Vol. xxv, p. 313. 
1907. 
(94) . Inheritance of the Belt in Hampshire Swine. Ibid. Vol. xxv, pp. 541 — 543. 1907. 
(95) SEDfNKO, Otakar. PomSr pohlavi pfi porodech v rakousku vubec a v 6echdch zvlaste. 
[The Sex Ratio of Births in Austria and especially in Bohemia.] Pfedbezne sdeleni, 
z Casopis lek. cesk., Rocnik, 1907, 51 pp. 
(96) ToYAMA, K. Studies on the Hybridology of Insects, i. On some Silk-worm Crosses, 
with special Reference to Mendel's Laws of Heredity. Bull. Coll. Agric, Tokyo Imp. 
Univ., Vol. VII, pp. 259—393. 1906. 
Embodies an extensive mass of detailed data on the results of hybridizing silk- 
worms. Results partly Mendelian, partly not. 
(97) Vigor, H. D. & Yule, G. U. On the Sex- Ratios of Births in the Registration Districts 
of England and Wales, 1881-90. Jour. R. Stat. Soc, Vol. lxix. Part iii. 1906. 
(98) VoGT, H. Studien iiber das Hirngewicht der Idioten ; das absolute Gewicht. Monats- 
schrift f. Psychiat. u. Neurol, Bd. xx, pp. 424—469. 1906. 
(99) Weinberg, W. Verwandtenehe und Geisteskrankheit. Arch. Rassen. u. Gesellsch. Biol. 
Jahrg. 4, pp. 471—475. 1907. 
Discussion of Mayer's statistics (Jahrb. internat. Ver. f. Rechtswiss. u. Volks- 
wirtsch., Bd. vi — vii, 1904). 
(100) Whipple, G. M. A Quick Method for Determining the Index of Correlation. Amer. 
Jour. Psychol., Vol. xviil, pp. 322—325. 1907. 
(101) Wright, A. H. A Graphic Method of Correlating Fish Environment and Distribution. 
Amer. Nat., Vol. xli, pp. 351—354. 1907. 
(102) Yule, G. U. On the Theory of Correlation for any Number of Variables, treated by a 
New System of Notation. Proc. Roy. Soc, Vol. 79a, pp. 182—193. 1907. 
