tificial ice for refrigerating purposes. The treatment of the subject is most scholarly. film cameras—the drawbacks of neither. liquefaction of air and various gases is also We regret that lack of space prevents our pub- ROCHESTER OPTICAL CO., Rochester, N.Y. treated quite thoroughly, and the… … us believe. Book marker and leaf holder, combined, C. 756,115 D. Hrauda Publications of the Mississippi Histori- 755,623 Bottle closure, K. H. . Cressman Instructive Scientific Papers cal Society. Edited by Franklin L. 755,619 Bottling machine, H. W. Colby 756,188 Brake, F. Stoltzenburg Riley,…
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