Robert Ellis Dudgeon eBooks

The Human Eye: Its Optical Construction Popularly Explained. E-book. Formato PDF Robert Ellis Dudgeon   -  Forgotten Books, 2017  - 

The novel views in this little work respecting sub aqueous vision, air lenses, and visual accommodation were first promulgated in two pamphlets, entitled, Notes on the Dioptrics of Vision,' and 'the Mechanism of Accommodation,' published in 1871 and 1872. They were also explained in lectures delivered in 1871 before the Sunday Lecture Society and in 1872 at the Sunday Evenings for the People. Again, in August 1872, the Author read a paper at.