444 



The Ohio Journal of Science [Vol. XIX, No. 8, 



Station 3. This station covered the corner of the pond near 

 the lime kilns. A portion of the shore is shown on page 445. 

 A similar condition extended around to the right beyond the 

 field of the picture. Refuse from the kilns had been dumped 

 here and formed a substratum which, from an environmental 

 standpoint, resembled a sandy beach. It was thoroughly 

 soaked with water and in many places would not bear one's 



TABLE 8. 



Numerals where given indicate the number of individuals in an area 7 by 12 feet, except as otherwise 

 stated. 



* See text for explanation of the asterisk. 



weight. The water was shallow and the waves rasped the peb- 

 bles and finer particles about as sand is shifted by wave action. 

 Such material is a very unsuitable habitat. The only vegetation 

 consisted of the willow shoots and the bunch of grass shown 

 in the photograph. 



A few PhyscB were scattered about where large stones gave 

 them a firm footing. Here and there a few Chironomid larvae 

 were found and an occasional nymph of Heptagenia variabilis. 

 Aside from these forms there were no animals in this area. 



