Kofoid, Charles A. 



1896, A report upon the protozoa observed in Lake Michigan aind the 

 inland lakes in the neighborhood of Charlevoix, during the 

 summer of I89U. Appendix II to: A biological examination 

 of Lake Michigan in the Traverse Bay region, by Henry B. 

 Ward. Bulletin, Michigan Fish Commission, No. A, I896, 

 pp. 76-8h. Lansing, 



1908. The Plankton of the Illinois River, I89U-I899. Part II. 

 Constituent organisms and their seasonal distribution. 

 Bulletin, Illinois State Laboratory of Natural History, 

 Vol. VIII, Article I, 190 8, 360 pp. Urbana. 



Krecker, Frederick H. 



192lj, Conditions under which Goniobasis livescens occurs in the 

 island region of Lake Erie. Ohio Journal ©f Science, 

 Vol. XXIV, No. 6, I92U, pp. 299-310. Columbus. 



1928. Periodic oscillations in Lake Erie. The Ohio S"oate Uni- 

 versity, Franz Theodore Stone Laboratory, Contribution 

 No. 1, 1928, 22 pp. Columbus. 



1931. Verticle oscillations or seiches in lakes as a factor in the 

 aquatic environment. Ecology, Vol. XII, No. 1, 1931, 

 pp. I56-I63. Lancaster, Pennsylvania. 



Krecker, Frederick H. and'L. Y. Lancaster. 



1933. Bottom shore fauna of Western Lake Erie; a population 



study to a depth of jix feet. Ecology, Vol. X17, No. 2, 

 1933, pp. 79-93, Brooklyn. 



Lachlan, R. 



1855. On the periodical rise and fall of the lakes. American 

 Journal of Science and Arts, Second Series, Vol. XIX, 

 1855, pp. 60-71, 16U-175; Vol. 20, 1855, pp. U5-53, 

 New Haven. 



Landacre, F. L. 



1908. The protozoa of Saindusky Bay and vicinity. Proceedings, 



Ohio Academy of Science, Vol. IV, Part 10, (Special Paper 

 No. 13), 1908, pp. U23-U72. Columbus. 



Le Conte, John. 



I88I1. Physical studies of Lake Tahoe, .III. Rhythmic variations 

 of level in lakes: or "seiches". Overlmd Monthly, 

 Second Series, Vol, 3, No, 1, I88U, pp. Iil-hA. San Francisco, 



326 



