iv CONTENTS 



No. 4. DECEMBER 



H. li. WiEMAN. The degenerated cells in the testis of Leptinotarsa signaticoUis. 



N iuo figures 485 



H. S. Jennings and G. T. Hargitt. Characteristics of the diverse races of 



Paramecium. Twenty-four figures 495 



CiiDEON S. DoDDS. Segregation of the germ-cells of the Teleost, Lophius. 



Thirty-four figures 563 



J. Paksons Schaeffer. The lateral wall of the cavum nasi in man, with 



especial reference to the various developmental stages. Fifty figures 613 



SUPPLEMENT. FEBRUARY, 1911 



.J. ¥. Gvdernatsch. The thyreoid gland of the Teleosts. Twenty-one text 



figures and five plates 709 



