How to become an inventor : Containing experiments in photography, hydraulics, galvanism and electricity, magnetism, heat, and the wonders of the microscope
How to become an inventor : Containing experiments in photography, hydraulics, galvanism and electricity, magnetism, heat, and the wonders of the microscope
Demian Katz, Craig Kirkwood, and the Online Distributed Proofreading Team at https://www.pgdp.net (Images courtesy of the Digital Library@Villanova University.)