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2.] THE STUDY OF VARIATION. 479 
BIBLIOGRAPHY. 
ROSENBERG, E. Ueber die Entwicklung der Wirbelsdule und das 
centrale Carpi des Menschen. Morph. Jahrb., Bd. 1, p. 83. 
Brooks, W. K. The Law of Heredity. Boston. 1893. 
CREDNER, H. Die Stegocephalen aus dem Rothliegenden des Plauen- 
schen Grundes bei Dresden, vi. Zeztsch. fiir d. deutsche geol. 
Gesellschaft, Bd. 38, p. 576. 
GEDDES AND THOMSON. The Evolution of Sex. London. 1889. 
GALTON, FRANCIS. Natural Inheritance. London. 1889. 
Baur, G. The Intercalation of Vertebre. /ourn. of Morph., vol. iv, 
Pp. 331. 
Minot, C. S. Senescence and Rejuvenation. Journ. of Physiol., vol. 
xil, p. 97. 
WHITMAN, C. O. The Inadequacy of the Cell Theory of Develop- 
ment. Bvzological Lectures. Woods Holl. 1893. 
WIEDERSHEIM, R. Grundriss der vergleichenden Anatomie der Wirbel- 
thiere. Jena. 1893. 
BATESON, W. Materials for the Study of Variation. London. 1894. 
Scott, W. B. On Variations and Mutations. Am. Journ. of Scz., 
vol. xlviii, p. 355. 
Roux, W., AND WHEELER, W. M. The Problems, Methods, and Scope 
of Developmental Mechanics. Bzological Lectures. Woods Holl. 
1894. 
MontTGOMERY, T. H., JR. Organic Variation as a Criterion of 
Development. /ourn. of Morph., vol. xii, p. 251. 
PARKER, G. H. Variations in the Vertebral Column of Necturus. 
Anat. Anz., Bd. 11, p. 711. 
