Creator
- Chasmar-Winchell Press1
- Chautauqua Press1
- Chemical Foundation (U.S.)1
- Chemical Publishing Co.1
- Chemical Publishing Company1
- Church, A. H. (Arthur Herbert), 1834-19151
- Clark, K. G.1
- Clarke, Frank Wigglesworth, 1847-19311
- Clason, George S. (George Samuel), 1874-19571
- Cleanliness Institute1
- Collins Printing House1
- Colton, J.W. (Firm)1
- Columbia University1
- Comar, C. L.1
- Consolidated Edison Company of New York, inc.1
- Constable1
- Cooley, Le Roy C. (Le Roy Clark), 1833-19161
- Cornish, George Anthony, 1901-19891
- Cosler, V. A.1
- Cramp, Arthur J. (Arthur Joseph), 1872-1