CONTENTS 



No. 1. JULY 



William A. Locy and Olof Larsell. The embryology of the bird's lung. Based on 

 observations of the domestic fowl. Part II. Twenty-two figures 1 



H. VON W. ScHULTE. The fusion of the cardiac anlages and the formation of the cardiac 



loop in the cat (Felis domestica). Sixteen figures 45 



V. E. Emmel. Concerning certain cellular elements in the coelomic cavities and mesen- 

 chyma of the mammalian embryo. Four plates (forty-four figures) 73 



J. Parsons Schaeffer. The genesis, development, and adult anatomy of the naso- 

 frontal region in man. Thirteen figures 125 



No. 2. SEPTEMBER 



John Sundwall. The lachrymal gland. Twenty figures 147 



W. J. M. Scott. Experimental mitochondrial changes in the pancreas in phosphorus 



poisoning. Seven figures (one plate) 237 



No. 3. NOVEMBER 



Vera Danchakoff. Equivalence of different hematopoietic anlages (by method of 

 stimulation of their stem cells). I. Spleen. Two text figures and nine plates 255 



Norman Clive Nicholson. Morphological and microchemical variations in mitochon- 

 dria in the nerve cells of the central nervous systems. Two plates 329 



C. V. Morrill. On the development of the atrial septum and the valvular apparatus 

 in the right atrium of the pig embryo, with a note on the fenestration of the anterior 

 cardinal veins. Nine figures 351 



Charles H. Swift. Origin of the sex-cords and definitive spermatogonia in the male 



chick. Six figures 375 



Edg.ar H. Norris. The morphogenesis of the follicles in the human thyroid gland. 

 Seventeen figures 411 



WxM. E. Kellicott. The effects of low temperature upon the development of Fundulus . . 449 



Paul E. Lineback. The development of the spiral coil in the large intestine of the pig. 



Twenty-three figures 483 



