BIBLIOGRA PH Y 345 



Microscopical bulletin and science news. Illust. Philadelphia, 1883+. The editor, 

 Edward Pennock introduced the terni "par-focal" for oculars (see vol. iii, p. 31). 



Monthly microscopical journal. Illust. London, 1869-1877. 



Nature. Illust. London, 1869-h 



The Observer. Portland, Conn., 1890-1897. 



Philosophical Transactions of the Royal Society of London. Illust. London, 1665-)-. 



Proceedings of the American microscopical society, 1S78 — . 



Proceedings of the Royal Society. London, 1854-J-. 



Quarterly journal of microscopical science. Illust. I/>ndon, 1853-!-. 



Rev. de Metallurgies Paris, 1904-h 



Science, a weekly journal devoted to the advancement of science. New York. N. S. 

 XS95-. 



Science Record. Boston, 18S3-4. 



The Scientific American. New York, 1845+. 



Zeitschrift f. Angewandte Mikroskopie. 1898+. 



Zeitschrift fftr Instrumentenkunde. Berlin, 18S1-K 



Zeitschrift flir physio logische Chemie. Strassburg, 1877-K 



Zeitschrift ftir wissenschaftliche Mikroskopie und fllr mikroskopische Technik. Illust. 

 Braunschweig, 1884 -f-. Methods, bibliography and original papers. 



