. Journal of morphology . O., 93. The Habits and Development of the Newt. Jour. Morph., Vol. , AxBERT VON, 76. Eutwicklungsgeschichte des Menschen und der hoheren Thiere. , 08. Eutwicklungsgeschichte der wirbellosen Thiere. Allgemeiner Theil. Jena, 1902, p. , W. J. G;, 07. Fertilization and Embryogeny in Ephedra trifurca. Botanical Gazette, October, 1907, Vol. XLIV, No. , Albert, 92. Die Befruchtung des Reptilieneies. Archiv fiir Mikro- skopische Anatomie, Vol. , 99. Die erste Entwickelung des Eies der Elasmobranchier. Fest-sch


. Journal of morphology . O., 93. The Habits and Development of the Newt. Jour. Morph., Vol. , AxBERT VON, 76. Eutwicklungsgeschichte des Menschen und der hoheren Thiere. , 08. Eutwicklungsgeschichte der wirbellosen Thiere. Allgemeiner Theil. Jena, 1902, p. , W. J. G;, 07. Fertilization and Embryogeny in Ephedra trifurca. Botanical Gazette, October, 1907, Vol. XLIV, No. , Albert, 92. Die Befruchtung des Reptilieneies. Archiv fiir Mikro- skopische Anatomie, Vol. , 99. Die erste Entwickelung des Eies der Elasmobranchier. Fest-schrift zum Sieb. Geb. von Carl von Kupffer. , E. B., 00. The Cell in Development and Inheritance. New York, , E. B., 03. Experiments on Cleavage and Localization in the Nemer- tine egg. Archiv fiir Entwickelungsmechauik der Organismen, Vol. 16. , H. V., 91. The Embryology of the Sea Bass (Serranus Atrarius). Bull. U. S. F. C, Vol. 9, pp. 209-277. The Early Development of the Pigeons Egg. 55. Fig. 45.—Pliotograpli of a i)igeuu egg iu the maturation stage. ni., 3% hours after fertilization. The photograph was taken with reflectedlight from the whole mount, per, perihlast. bl, blastodisc. 56 Mary Bloimt.


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