THE VITAL PHENOMENA OF THE CELL 251 



93. W. H. CALDWELL. The Embryology of Monotremata and Marsupialia, 



Part I., Philosophical Transactions of the Royal Society of London for 

 the year 1887. 



94. G. L. GALLAND. The Nature and Varieties of Leucocytes, Laboratory 



Reports of R. Coll. of Physicians of Edinburgh. Vol. III. 1891. 



95. ROBINSON. On the Early Developmental History of Mammalia , esppcially as 



regards the Inversion of the Layers. Quart. Juiirn. Mic. Sci., XXXIII., 

 369. 



96. SEDGWICK. On Elasmobranchs. Quart. Journ. Micr. Sci., XXXIII., 559. 



97. J. B. CABNOY. Some Remarks on the recent Researches of Zacliarias and 



Boveri upon the Fecundation of Ascaris megalocephala. Report on the 

 57th meeting of the Brit. Ass. fur the Advancement of Science at Man- 

 chester, 1887. 



98. A. WEISMANN. Essays upon Heredity and kindred Biological Problems 



(translation*). Oxford, Clarendon Press. 1889. 



