VOLUME 51. 



1. Thaxter, Roland. — New Indo-Malayan Laboulbeniales. pp. 1-51. August, 1915 



70c. 



2. Bbidgman, p. W. — Polymorphic Transformations of Solids under' Pressure, pp. 53- 



124. September, 1915. $1.00. 



3. Wabren, Charles H. — A Quantitative Study of Certain Perthitic Feldspars, pp. 125- 



154. October, 1915. 50c. 



4. Daly, Reginald A. — The Glacial-Control Theory of Coral Reefs. pp. 155-251 



November, 1915. $1.25. 



5. Wheeler, William Morton. — The Australian Honey-Ants of the Genus Leptomyrmex 



Mayr. November, 1915. pp. 253-286. 50c. 



6. KoFOiD, Charles Atwood, and Swezy, Olive. — Mitosis and Multiple Fission in Tri- 



chomonad Flagellates, pp. 287-379. 8 pll. November, 1915. $1.50. 



7. Jackson, Dunham. — Expansion Problems with Irregular Boundary Conditions, pp. 



381-417. November, 1915. 70c. 

 S. Kennelly, a. E., and Affel, H. A. — The Mechanics of Telephone-Receiver Diaphragms. 



as Derived from their Motional-Impedance Circles, pp. 419—482. November, 1915 



$1.25. 

 9. Mavor, J. W. — On the Development of the Coral Agaricia fragilis Dana. pp. 483-511. 



pll. December, 1915. 90c. 



10. Blake, S. F. — (I) Composilae new and transferred, chiefly Mexican; (II) Robinson, 



B. L. — New, reclassified, or otherwise noteworthy Spermatophytes; (III) Macbride, 

 J. Francis. — Certain Borraginaceae new or transferred, pp. 513-548. January, 

 1916. 50c. 



11. Mavor, J.\mes W. — -On the Life-History of Ceratomyxa acadiensis, a new species of 



Myxosporidia from the eastern coast of Canada, pp. 549-578. 3 pll. April, 1916. 

 70c. 



12. Bridgman, p. W. — Polymorphic Changes under Pressure of the Univalent Nitrates. 



pp. 579-625. April, 1916. 70c. 

 13 Verhoeff, F. H., Bell, Louis, and Walker, C. B. — The Pathological Effects of 



Radiant Energy upon the Eye. pp. 627-818 (8 pis.) July, 1916. $1.50. 

 14. Records of Meetings: Officers and Committees; List of Fellows and Foreign Honorary 



Members; Statutes and Standing Votes, etc. December, 1916. $1.00. 



( Confhtucd (III 1x1(1'' '• of coorf. ) 



