INTRODUCTION OF THE MICROSCOPE 



55 



scopic observation did not produce its great results until the 

 nineteenth century, just after magnify ing-lenses had been 

 greatly improved. 



Robert Hooke (1635-1703), of London, published in 1665 

 a book of observations with the microscope entitled Micro- 

 graphia, which was embellished with eighty- three plates of 

 figures. Hooke was a man of fine mental endowment, who 

 had received a good scientific 

 training at the University of 

 Cambridge, but who lacked 

 fixedness of purpose in the 

 employment of his talents. 

 He did good work in math- 

 ematics, made many models 

 for experimenting with flying 

 machines, and claimed to have 

 discovered gravitation before 



FIG. 12. HOOKE'S MICROSCOPE, 1665. 



From Carpenter's The Microscope and Its Revelations. Permission of 

 P. Blakiston's Sons & Co. 



