508 FRESH-WATER BIOLOGICAL STATIONS OF THE WORLD. 



the limits of the United States, and they represent all the various types 

 of such institutions. A considerable number of workers have reported 

 isolated investigations of lakes in all parts of the country from Maine to 

 California. Among the most important of these occasional observations 

 are those made by Forbes on the fauna of elevated lakes in the Rocky 

 Mountains. The observations which he has recorded were made in the 

 course of a preliminary investigation of these lakes by the United 

 States Fish Commission, and constitute the only information on record 

 with reference to the lakes of the country west of the Missouri River. 

 There are but two localities which may be listed, however, as individual 

 resorts sufficiently regularly visited to entitle them to more particular 

 mention in this place. Green Lake, in Wisconsin, has been carefully 

 studied by Professor Marsh, of Ripon College, and his work has yielded 

 valuable information with reference to the vertical distribution of the 

 Crustacea and with regard to the deep-water fauna of the lake. Here 

 he was able to confirm the observation of Stimpson, on Lake Michigan, 

 that there are found in the deep waters of our large lakes Crustacea of 

 a purely marine type. At Lake Mendota, in Wisconsin, on the shores 

 of which is located the State University a careful investigation, extend- 

 ing over a very considerable number of years, has been carried on by 

 Professor Birge, of the university. The results which he has obtained 

 with reference to the distribution, both vertical and seasonal, have 

 been published by the Wisconsin Academy and are not only the most 

 extensive, but beyond all comparison the most precise investigation 

 which has been made on this problem. Of course, in one sense, this 

 station has no building, but the scientific laboratory of the university, 

 standing within a stone's throw of the shore of the lake, affords oppor- 

 tunities which are not surpassed at any fresh-water station in the 

 world. 



The lake laboratory, founded in 1886 at Milwaukee, Wis., owed its 

 inception and support to the liberality of E. P. Allis, jr.; it was unique 

 in that a group of investigators were kept at work for years under an 

 environment ideal in equipment and opportunity, and were afforded 

 every advantage for the prosecution of their investigations, so that it 

 combined the advantages of the individual resort with those of the 

 permanent station. One need only mention the work of the founder on 

 the lateral line of fishes, and the papers of Ayers, Patten, Whitman, and 

 others, to show the influence it has exercised on the development of 

 biological work in our country. And it should not be forgotten also 

 that we owe the foundation of the Journal of Morphology and much of 

 its support for years to the same generous patron. The lake laboratory 

 has been temporarily closed during the illness and absence from this 

 country of its founder; there is a general hope that it may soon be 

 reopened. 



Quite a number of periodic resorts of the type of summer laboratories 

 are to be found in various parts of the country. Some of these are 



