Silliman, Benjamin, 1779-1864, éd. Periodical Room *5164.1
The American journal of science ... 1819-1940.
Cc at 1935).—Aug. 1935- R. S. Lull.
Vol. 50 is a general index to v. 1-49. Beginning with the second series every tenth volume includes an ‘index which covers the vreceding 10 vols.
5th series, vol. 36, whole no. 236, for July to Dec. 1938 is the last volume having the new series number. Beginning with vol. 237, Jan. 1939, the whole number
alone is given. (Continued ; next cerd)