Impact Factor
2.83
Estimated influence, citation density, publishing volume, and citation integrity from the analytics table.
Volume, recency, access pattern, and citing-community signals from the journal analytics record.
Recent article records with DOI-first linking and condensed abstracts.
No. 4 of each volume, 1965-69 includes a cumulative index to the current volume and those for two or three preceding years.
Also issued online.
Microfilm. v.11 (1868)-v.12 (1869) 2 microfilm reels : negative ; 35 mm.
Indexes: Vols. 1-17, Mar. 1958-Dec. 1974. 1 v.
Vol. 37, no. 4 (1994)19950516 Notice published Printed on acid-free paper