CONTENTS OF VOL. XXIX. 
Pagr 
No. 1. —Proceedings of the Annual Meeting, May 3, 1899. 
Report of the Curator, Alpheus Hyatt.1 
Report of the Secretary and Librarian, Samuel Henshaw ... 14 
Report of the Treasurer, Edward T. Bouve ..... 22 
Officers for 1899-1900 . 24 
List of members.. . . . . .25 
By-laws.38 
June, 1899. 
No. 2. — Variation and Sexual Selection in Man. By Edwin Tenney 
Brewster. July, 1899. 45 
No. 3. — Notes on the Reptiles and Amphibians of Intervale, New Hamp¬ 
shire. By Glover M. Allen. July, 1899. 63 
No. 4. — Studies in Diptera Cyclorhapha. 1. The Pipunculidae of the 
United States. By Garry de N. Hough. July, 1899. ... 77 
No. 5. — Contributions from the Gray Herbarium of Harvard University. 
New Series. — No. 17. By B. L. Robinson and J. M. Greenman. 
August, 1899. 87 
No. 6. —The Development of Penilia schmackeri Richard. By Mervin T. 
Sudler. (3 Plates.) October, 1899.. 109 
No. 7. —List of Marine Mollusca of Coldspring Harbor, Long Island, with 
descriptions of one new Genus and two new Species of Nudibranchs. 
By Francis Noyes Balcii. (1 Plate.) October, 1899. . . . 133 
No. 8.—The Blood Vessels of the Heart in Carcharias, Raja, and Amia. 
By G. H. Parker and Frederica Iv. Davis. (3 Plates.) October, 
1899. 163 
No. 9. — The Occurrence of Fossils in the Roxbury Conglomerate. By 
Henry T. Burr and Robert E. Burke. (1 Plate.) April, 1900. 179 
No. 10. — On a hitherto unrecognized form of blood circulation without 
capillaries in the organs of the Vertebrata. By Charles? Sedgwick 
Minot, LL. I). April, 1900. 185 
No. 11. — A Revision of the Systematic Names employed by Writers on 
the Morphology of the Acmaeidae. By M. A. Willcox, Ph. D. 
April, 1900. ".217 
No. 12. — Proceedings of the Annual Meeting, May 2, 1900. 
Report of the Curator, Alpheus Hyatt ...... 223 
Report of the Secretary and Librarian, Charles F. Batchelder 234 
Report of the Treasurer, Edward T. Bouve .239 
May, 1900. 
No. 13. — The Embryonic History of Imaginal Discs in Melopliagus ovinus 
L., together with an Account of the Earlier Stages in the Develop¬ 
ment of the Insect. By II. S. Pratt, Ph. 1). (7 Plates.) June, 
1900. 241 
No. 14. — Glacial Erosion in France, Switzerland and Norway. By 
William Morris Davis. (3 Plates.) July, 1900. . . . 273 
No. 15. — Echinoderms from Puget Sound: Observations made on the 
Echinoderms collected by the parties from Columbia University, in 
Puget Sound in 1896 and 1897. By Hubert Lyman Clark. (4 
Plates.) May, 1901. 323 
No. 16. — Bermudan Echinoderms. A Report on Observations and Collec¬ 
tions made in 1899. By Hubert Lyman Clark. May, 1901. . 339 
No. 17. — Proceedings of the Annual Meeting, May 1, 1901. 
Report of the Curator, Alpheus Hyatt ...... 347 
Report of the Secretary and Librarian, Charles F. Batchelder . 358 
Report of the Treasurer, Edward T. Bouve .364 
Officers for 1901-1902 366 
List of Members.367 
June, 1901. 
No. 18. — The Polychaeta of the Puget Sound Region. By Herbert 
Parlin Johnson. (19 Plates.) August, 1901. .... 381 
