390 The American Naturalist. [May, 



Minot, C. S.— On Certain Phenomena of Growing Old. 

 Proe. A. A. A. S., xxxix, 271, 1891. 



Mitchell, H. W. — The Evolution of Life, or Causes of 

 Changes in Animal Forms ; A Study in Biology. New York, 

 1891. 



Osbokn, H. L. — Heredity, its Part in Organic Evolution. 

 Am. Mo. Micros. Jour., xii, 109, 1891. 



Shufeldt, R. W. — Where Amateur Photographers can be of 

 Use to Science. Am. Nat., xxv, 626, 1891. 



Wilder, B. G. — The Fundamental Principles of Anatomi- 

 cal Nomenclature. Medical News, Dec, 1891. 



INVERTEBRATA. 



Forbes, S. A. — Preliminary Report Upon the Invertebrate 

 Animals Inhabiting Lakes Geneva and Mendota, Wis., with an 

 account of the Mi epidemic in Lake Mendota in 1884. Bull. 

 U. S. Fish Com., viii, 473, 1891. 



Ganong, W. F.— Southern Invertebrates on the Shores of 

 Acadia. Trans. Royal Soc. Canada, vii ; Sec. 4, 167, 1891. 



HoneYman, D.— Glacial Boulders of Our Fisheries and 

 Invertebrates, Attached and Detached. Trans. Nova Scotia 

 Inst., vii, 205. 



Two Cable Hauls of Marine Invertebrates. Trans. 



Nova Scotia Inst., vii, 260, 1889. 



Linton, E.— On Certain Wart-like Excresences Occurring 

 on the Short Minnow, Oyprinodon variegatus, due to Psoro- 

 sperms. Bull. U. S. Fish Com., ix, 99, 1891. 



Notice of the Occurrence of Protozoan Parasites ( I'soro- 



sperms) on Cyprinoid Fishes in Ohio. Bull. U. S. Fish Com-, 

 ix, 359, 1891. 



Stokes, A. C— Notices of New Fresh-water Infusoria. Proc. 

 Am. Phil. Soc, xxviii, 74, 1890. 



Notes of the New Infusoria from the Fresh Waters of 



United States. Jour. Roy. 

 r species; Trichototaxis n. g. 



'.»:.— !■-• 



