CONTENTS. OF: VOL, XIX. 
No. 1.—FEBRUARY, 1908. 
PAGES. 
FRANKLIN P. MALt. 
A Study of the Causes Underlying the Origin 
of Human Monsters. (Third Contribution 
to the Study of the Pathology of Human 
EEO EMOG Ni at pers cot ee tame her Ve abe Meta tec thane 3-368 
No. 2.—-OcTOBER, 10908. 
I. Heten Dean Kine. 
The Oodgenesis of Bufo lentiginosus ...... 369-438 
Il. Heven Dean Kine. 
The Structure and Development of Bidder’s 
Organ in Bufo lentiginosus ......... 439-408 
Ill. JAcos REIGHARD AND JESSIE PHELPS. 
The Development of the Adhesive Organ 
and Head Mesoblast of Amia ....... 469-409 
IV. JAcosp REIGHARD AND S. O. Mast. 
Studies on Ganoid Fishes. IT. The Develop- 
ment of the Hypophysis of Amia .... 497-510 
V. Roy L. Mooptr. 
The Lateral Line System in Extinct Am- 
PUVO UGA se gk 5 oe Mme ver ee Ge 511-540 
VI. SorsterJ. ANTHON. 
The Larva of Ctenophora angustipennis, 
1 TUE a Nimes oa Rey eta Oe ET Be Se a 541-560 
No. 3.—DECEMBER, 1908. 
ArTHUR Day Howarp. 
The Visual Cells in Vertebrates, Chiefly in Nec- 
CHES HUUCUNOSUS S «< iy tate foes at hs) s Sha sulhewte he 561-62 
