CH. XII] HISTORY OF LENSES AND MICROSCOPES 441 



COLLATERAL READING FOR CHAPTER XII 

 (For the full titles, when not given, see the general bibliography.) 



ABBE, E. Substage condenser, Apochromatic objectives, etc., Hovestadt and 

 Zeiss catalogues. 



ADAMS, G. Micrographia, 1720-1773. Essays, 1750-1795. 



AIRY, G. B. On a peculiar defect in the eye and a mode of correcting it. Cam- 

 bridge Philos. Trans., Vol. II, 1827, pp. 267-271. Here is discussed astigma- 

 tism and its correction by cylindrical glasses. 



ALHAZEN. The Opticae Thesaurus, translated by Risner, 1572. 



BACON, ROGER. Opus Majus, 1266-1267. Combach's edition, 1614. On p. 

 159 occurs the description of a convex glass to aid old men in reading. 

 Bridges edition, 1897-1900. Vol. II, p. 157, spectacle for old men. 

 Opus tertium,opus minus. Brewer, in Compendium studii philosophiae, 1859. 

 Part of the Opus tertium, including a fragment now printed for the first 

 time. Edited by A. G. Little, 1912. On p. 40 is repeated the statement about 

 the convex lens for old men, and much other optics. 



BAKER, H. Microscopes, 1742, p. 25. 



BARBARO, DANIEL. La pratica della perspettiva, Venice, 1568. 



BAUSCH & LOMB OPTICAL COMPANY. Lenses, their History, theory and manu- 

 facture. Published in honor of the ninth annual convention of the Ameri- 

 can Association of Opticians. Rochester, 1906. 47 pages, many figures. 



BOCK, E. Die Brille (spectacles) und ihre Geschichte, 1903. 



BORELLUS, PETRUS. De vero telescopii inventore, 1655. Dutch compound 

 microscope by eye-witnesses. 



BREWSTER, SIR DAVID. The Edinburgh encyclopaedia, 1832; treatise on the 

 microscope, 1837. 



CARPENTER-DALLINGER. Revelations of the Microscope, 1901. 



Cox, HON. J. D. Robert B. Tolles and the angular aperture question. Deals 

 with the origin of the homogeneous immersion objective also. Transactions 

 of the Amer. Micr. Soc., 1884, pp. 5-39. 



CHEVALIER, CH. Des microscopes, 1839. 



DESCARTES, R. Dioptrique. 1637. 



DOLLOND, J. Philos. Trans. Roy. Soc., London, 1758, pp. 733-743. An account 

 of some experiments concerning the different refrangibility of light. Every 

 one interested in optical instruments ought to read this paper. 



EDINGER. See tor description of the double ocular, Jour. Roy. Micr. Soc., 1911, 

 p. 252. 



GAGE, S. H. & H. P. Optic Projection, 1914. 



FaAVos, K \au5ios. Hepl XPas r&v kv avdpuirov (runart nopiuv (Galenus, 

 Claudius. De usu partium corporis humani, 131-201 A.D.). 



GORING & PRITCHARD. Micrographia, 1837. 



HARTING, P. Het Mikroskoop, 1858; Das Mikroskop, 2d ed., 1866. 



