![](http://www.alamy.com/thumbs/6/DC4AAADE-78CD-4328-87A5-D406719C2E10/2ABTWTH.jpg)
MERRITT'S TREE PROTECTOR. EXTRACTS FROM HELMHOLTZ. The Steam Machinery of the Navy. Interesting to Physiologists., scientific american, 1865-02-11
MERRITT'S TREE PROTECTOR. EXTRACTS FROM HELMHOLTZ. The Steam Machinery of the Navy. Interesting to Physiologists., scientific american, 1865-02-11
Size: 2883px × 4064px
Location:
Photo credit: © Corantos / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: .., 1865-02-11, american, analysis, broadsheet, curious, developments, discover, discovery, education, emerging, engravings, experiment, extracts, health, helmholtz, industrial, information, innovation, insights, interesting, inventions, inventor, journal, lab, machinery, magazine, merritt, mind, monthly, navy, paper, patented, physiologists, practical, protector, publication, research, revolution, sa, sciam, science, sciences, scientific, scientist, states, steam, sustainability, tech, technology, tree, trends, united, weekly, works