CONTEXTS 



1912 



No. 1. MARCH 



J. Parsons Schaeffer. The genesis and development of the nasolacrimal 



passages in man. Thirty-one figures 1 



Charles R. Essick. The development of the nuclei pontis and the nucleus 



arcuatus in man. Twelve figures 2 



RuskinM. Lhamon. The sheath of the sino ventricular bundle. Five figures 55 



Albert Kuntz. The development of the adrenals in the turtle. Nine 

 figures 71 



No. 2. MAY 



Dar.mon A. Rhinehart. The nerves of the thyroid and parathyroid bodies. 

 Five figures 91 



Alexander S. Begg. The anomalous persistence in embryos of parts of the 



peri-intestinal rings formed by the vitelline veins. Five figures 103 



John Lewis Bremer. The development of the aorta and aortic arches in 



rabbits. Nine figures Ill 



Jeremiah S. Ferguson. The behavior and relation of living connective 

 tissue cells in the fins of fish embryos with especial reference to the 

 histogenesis of the collaginous or white fibers. Ten figures 129 



H. E. Jordan and K. B. Steele. A comparative microscopic study of the 



intercalated discs of vertebrate heart muscle. Twenty-three figures.. 151 



('mas. W. Green. A new type of fat storing muscles in the salmon. Onco- 



rhynchus tschawy tscha. Two figures 175 



iii 



