Smithsonian Miscellaneous Collections ...
Publisher: Smithsonian Institution
Published: 1869
Notes: Vols. 45, 47, 48, 50 and 52 were published as "Quarterly issue, v. 1-5, 1903-10", designed as a medium for the early publication of the results of researches and for reports of a preliminary nature; this form of publication was discontinued after v. 52.