VOLUME 51. 



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



1915. 70c. 



2. Uridgman, p. W. — Polyraorpliic Transformations of Solids under Pressure, pp. 



63-124. September, 1915. $1.00. 



3. Warren, Charles H. — A Quantitative Study of Certain Pertliitic 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. 

 b. KoFOiD, Charles Atwood, and Swezt, Olive. — Mitosis and Multiple Fission 

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



7. Jackson, Dunham. — Expansion Problems with Irreguiar Boundary Conditions. 



pp. 381^17. November, 1915. 70c. 



8. 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. 6 pll. December. 1915. 90c. 



10. Blake, S. P. — (I) Compositae new and transferred, chiefly Mexican; (II.' 



Robinson, B. L. — New, reclassified, or otherwise noteworthy Spermato- 

 phytes; (III) Macbride, J. Francis. — Certain Borraginaceae new or trans- 

 ferred, pp. 513-548. January, 1916. 50c. 



11. Mavor, James W. — On the Life-History of Ceratomyxa acadiensis, a new 



species of My.xosporidia from the eastern coast of Canada, pp. 549-578. 

 3 pU. April, 1916. 70c. 



12. Bridqman, 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: OfBcers and Committees; List of Fellows and Foreign 



Honorary Members; Statutes and Standing Votes, etc December, 1916. 

 $1,00. 



(Continued on page 2 of cover.) 



