Boston Society of Natural History. 
RECENT PUBLICATIONS. 
Proceedings. 8vo. (For price list of Memoirs, see third page of cover.) 
Vol. 31, No. 9. North American Ustilagineae. By G. P. Clinton. 200 pp.. 
$ 2 . 00 . 
No. 8. Pycnogonida collected at Bermuda in the summer of 1903. By L. J. 
Cole. 14 pp.,3 pis. 25 cts. 
No. 7. Trichomes of the root in vascular Cryptogams and Angiosperms. By 
R, G. Leavitt. 41 pp., 4 pis. 50 cts. 
No. 6. Contributions from the Gray herbarium of Harvard university. New 
series.— No. 27. By B. L. Robinson. 25 pp. 25 cts. 
No. 5. Observations on the cytology of Araiospora pulchra Thaxter. By 
C. A. King. 35 pp., 5 pis. 50 cts. 
No. 4. The metamorphoses of the hermit crab. By M. T. Thompson. 63 pp., 
7 pis. 75 cts. 
No. 3. Systematic results of the study of North American land mammals, 
during the years 1901 and 1902. By G. S. Miller, Jr., and J. A. G. Rehn. 
85 pp. 50 cts. 
No. 2. Proceedings of the Annual Meeting, May 6, 1903. 37 pp. 20 cts. 
No. 1. A rare Thalassinid and its larva. By M. T. Thompson. 21pp., 3 pis. 
35 cts. 
Vol. 30, No. 7. The life history, the normal fission and the reproductive- 
organs of Planaria maculata. By W. C. Curtis. 45 pp., 11 plates. 75 cts. 
No. 6. Monograph of the Acrasieae. By E. W. Olive. 63 pp., 4 plates. 50 cts. 
No. 5. Proceedings of the Annual Meeting, May 7, 1902. 15 pp. 15 cts. 
No. 4. Memorial of Professor Alpheus Hyatt. 20 pp. 10 cts. 
No. 3. The origin of eskers. By W. O. Crosby. 36 pp., 30 cts. 
No. 2. The Medford Dike area. By A. W. G. Wilson. 21 pp., 4 plates 
35 cts. 
No. 1. Systematic results of the study of North American land mammals to the- 
close of the year 1900. By G. S. Miller, Jr., and J. A. G. Rehn. 352 pp. 
$1.25. 
Vol. 29, No. 18. The Polychaeta of the Puget Sound Region. By H. P. John¬ 
son. 56 pp., 19 plates. 55 cts. 
No. 17. Proceedings of the Annual Meeting, May 1, 1901. 33 pp. IQ cts. 
No. 16. Bermudan Echinoderms. A report on observations and collections made 
in 1899. By H. L. Clark. 7 pp. 10 cts. 
No. 15. Echinoderms from Puget Sound : Observations made on the Echino¬ 
derms collected by the parties from Columbia University, in Puget Sound 
in 1896 and 1897. By H. L. Clark. 15 pp., 4 plates. 30 cts. 
No. 14. Glacial erosion in France, Switzerland and Norway. By William Morris 
Davis. 50 pp., 3 plates. 50 cts. 
No. 13. The embryonic history of imaginal discs in Melophagus ovinus L., 
together with an account of the earlier stages in the development of the 
insect. By H. S. Pratt. 32 pp., 7 plates. 75 cts. 
No. 12. Proceedings of the Annual Meeting, May 2, 1900. 18 pp. 10 cts. 
No. 11. A revision of the systematic names employed by writers on the morphol¬ 
ogy of the Acmaeidae. By M. A. Willcox. 6 pp. 10 cts. 
No. 10. On a hitherto unrecognized form of blood circulation without capillaries 
in the organs of vertebrata. By Charles Sedgwick Minot. 31 pp. 35 cts. 
No. 9. The occurrence of fossils in the Roxbury conglomerate. By Henry T. 
Burr and Robert E. Burke. 6 pp., 1 plate. 20 cts. 
No. 8. The blood vessels of the heart in Carcharias, Raja, and Amia. By 
G. H. Parker and F. K. Davis. 16 pp., 3 plates. 25 cts. 
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 Balcli. 30 pp., 1 plate. 35 cts. 
No. 6. The development of Penilia schmackeri Richard. By Mervin T. Sudler. 
23 pp., 3 plates. 30 cts. 
No. 5. Contributions from the Gray herbarium of Harvard university. 
series, no. 17. 1. Revision of the genus Gymnolomia. 2. Supplementary 
notes upon Calea, Tridax, and Mikania. By B. L. Robinson and J. M. 
Greenmail. 22 pp. 25 cts. 
No 4. Studies in Diptera Cyclorhaplia. 1. The Pipunculidae of the United 
States. By Garry de N. Hough. 10 pp. 10 cts. 
No. 3. Notes on the reptiles and amphibians of Intervale, N. H. By Glover 
M. Allen. 13 pp. 15 cts. 
No. 2. Variation and sexual selection in man. By Edwin Tenney Brewster. 
17 pp. 25 cts. 
No. 1. Proceedings of the Annual Meeting, May 3, 1899. 43 pp. 15 cts. 
