Titles of Microscopical Publications.— XII. 



NoTB. — Cut up this leaf, pasting each item on the upper part of a card 5x2 inches. When , 

 publication cited is in your library, paste your own label or some distinctive paper on the lowei 

 ;unused) part of its card. You will then keep catalogue-cards of uniform thickness, which you 

 can assort nicely into alphabetical packages. The other cards, which to yon are merely bib- 

 liographical, can, if desired, be balanced on the lower half with p.iper ofa dilferent color from 

 that used in your catalogue-cards. Not only microscopical books but pamphlets and the most 

 important magazine anicles should be included herein. Send to us for publication any other 

 titles that you can collect in your library, so as to complete a printed catalogue for yourself 

 and a bibliography for all. 



Gerardin, M. A.: Rapport sur I'Alteration, la Corruption 

 et I'Assainissement des Rivieres. 8vo. pp., 64. Imprimerie 

 Nationale. Paris: 1874. 



Gissler, Chas. F. : Contributions to the Fauna of the New 

 York Croton Water. Microscopical Observations. Svo. pp., 

 23. New York : 1872. 



Green, Nelson G. : Water Pollution. 8vo. pp., 29. New 

 York: 1881. 



Lankester, Edwin : Report on the Results of Microscop- 

 ical Examinations of Thames and other Water Supplies. Svo. 

 pp., 43. London : 1852. 



Lattimore, S. A. : Report on Hemlock Lake Water Sup- 

 ply. 8vo. pp., 12. Rochester: 1877. 



Rafter, G. W. : How to Study the Biology of a Water Sup- 

 ply. Svo. pp., 19. Rochester, Acad., Sci. 



Rafter, G. W. : On Use of the Microscope in Determining 

 Sanitary Value of Potable Water. Biology of Water of Hem- 

 lock Lake. Svo. pp., 25. Rochester, Acad., Sci. 



Remsen, Ira : Report on Impurities of Boston Water Sup- 

 ply. Svo. Boston: ISSl. 



Thomas, B. W. : Microscopical Examination of Chicago 

 Water Supply. Svo. 3d. Report of De])t., Pub., Works. Chi- 

 cago : 1879. 



Torrey, J. & Chilton, Jas. R. : Report on Impurities of 

 Water Supply of Albany, New York. Svo. Albany : 1866. 



^A^alle^, Elwyn : Report on Croton Water. Svo. pp., 45. 

 New York: 1881. 



White, Robt. Jr.: Microscopic Organisms in Cochituate 

 Water. Svo. Bost. Med. and Surg. Jour, vol XCIX. 1878. 



Bailey, J. W. : Microscopical Examination of Soundings 

 off the Atlantic Coast of North America. 4to. Smith. Inst. 

 Washington : 1850. 



