| DRUGGISTS, PHYSICIANS, ASSAYERS, DYERS, PHOTOGRAPHERS, |
| MANUFACTURERS, |
| |
| And all concerned in scientific pursuits. |
| |
| Subscription, $5.00 per annum, in advance; 50 cts. per |
| number. Specimen copies, 25 cts. |
| |
| Address WILLIAM BALDWIN & CO., |
| |
| Publishers and Proprietors, |
| |
| 434 Broome Street, New York. |
| |
+--------------------------------------------------------------+
| |
| WEVILL & HAMMAR, |
| |
| Wood Engravers, |
| |
| 208 BROADWAY, |
| |
| NEW YORK. |
| |
+--------------------------------------------------------------+
| |
| GEO. B. BOWLEND, |
| |
| Draughtsman & Designer |
| |