156 EARLY EMBRYOLOGY OF THE CHICK 



Guyer, M., 1909. The Spermatogenesis of the Domestic Chicken. Ant. 

 Anz., Bd. 34, pp. 573-580. 



Harper, E. H., 1904. The Fertilization and Early Development of the 

 Pigeon's Egg. Am. Jour. Anat., Vol. Ill, pp. 349-386. 



Kellicott, W. E., 1913. A Text-book of General Embryology. Holt, New 

 York. V + 376 pp. 



Marshall, F. H. A., 1910. The Physiology of Reproduction. Longmans, 

 Green, London, xvii + 706 pp. 



Pearl R., and Curtis, M. R., 191 2. Studies on the Physiology of Reproduction 

 in the Domestic Fowl. V. Data Regarding the Physiology of the Oviduct. 

 Jour. Exp. Zool., Vol. 12, pp. 99-132. 



Riddle, O., 1911. On the Formation, Significance and Chemistry of the 

 White and Yellow Yolk of Ova. Jour. Morph., Vol. 22, pp. 455-492. 



Swift, C. H., 1914. Origin and Early History of the Primordial Germ-cells 

 in the Chick. Am. Jour. Anat., Vol. 15, pp. 483-516. 



Swift, C. H., 1915. Origin of the Definitive Sex-cells in the Female Chick 

 and Their Relation to the Primordial Germ-cells. Am. Jour. Anat., Vol. 18, 

 pp. 441-470. 



Swift, C. H., 1916. Origin of the Sex-cords and Definitive Spermatogonia in 

 the Male Chick. Am. Jour. Anat., Vol. 20, pp. 375-410. 



Cleavage, Gastrulation, Genn-layer Formation, and the Early Differentiation 



of the Embryo 



Bartelmez, G. W., 1918. The Relation of the Embryo to the Principal 

 Axis of Symmetry in the Bird's Egg. Biol. Bull., Vol. 35, pp. 319-361. 



Blount, M., 1907. The Early Development of the Pigeon's Egg, with Especial 

 Reference to the Supernumerary Sperm Nuclei, the Periblast, and the Germ- wall. 

 Biol. Bull., Vol. Xni, pp. 231-250. 



Edwards, C. L., 1902. The Physiological Zero and the Index of Development 

 for the Egg of the Domestic Fowl. Am. Jour. Physiol., Vol. VI, pp. 351-397. 



Eycleshymer, A. C, 1907. Some Observations and Experiments on the 

 Natural and Artificial Incubation of the Egg of the Common Fowl. Biol. Bull., 

 Vol. XIII, pp. 360-374. 



Hubbard, M. E., 1908. Some Experiments on the Order of Succession of 

 the Somites of the Chick. Am. Nat., Vol. 42, pp. 466-471. 



Lewis, Warren H. and Lewis, Margaret R., 191 2. The Cultivation of Chick 

 Tissues in Media of Known Chemical Constitution. Anat. Rec, Vol. 6, pp. 

 207-212. 



McWhorter, J. E., and Whipple, A. C, 1912. The Development of the 

 Blastoderm of the Chick in Vitrio. Anat. Rec, Vol. 6, pp. 1 21-140. 



Patterson, J. T., 1907. The Order of Appearance of the Anterior Somites in 

 the Chick. Biol. Bull., Vol. XIII, pp. 1 21-133. 



Patterson, J. T., 1909. Gastrulation in the Pigeon's Egg; a Morphological and 

 Experimental Study. Jour. Morph., Vol. 20, pp. 65-1 23. 



Patterson, J. T., 1910. Studies on the Early Development of the Hen's Egg. 

 I. History of the Early Cleavage and of the Accessory Cleavage. Jour, of 

 Morph., Vol. 21, pp. 101-134. 



Peebles, F., 1904. The Location of the Chick Embryo upon the Blastoderm. 

 Jour. Exp. Zool., Vol. i, pp. 369-384. 



Piatt, J. B., 1889. Studies on the Primitive Axial Segmentation of the Chick. 

 Bull. Mus. Comp. Zool. Harv., Vol. 17. 



