I i OLOGICAL SUCCESSION. ,^5 



VI. ACKNOWLEDGE M- AND BIBLIOGRAPHY. 

 i. Acknowledgments. In the preparation of this paper the 

 a--istance of a number of persons has been nece>s ary. A number 



I graduate students of the University have -tndied one or more 



it" ilic ponds and have given me the use of their notes. The 

 following -liould be especially mentioiu-d: Mi-- Alma Bu<h, 

 pond - i \ Mr. \Y. J. Saunders, pond i; Mr. Max Rohde. pond 

 -a: Mr. B. K. Isely, Mr. \V. C. Alice, Mr. v S. Visher, Mr. G. D. 

 . \lli ii, Mr. I >. L. Gardner, made more general contribution-.. I 

 am indebted lo Dr. Chas. C. Adams for reading the manii-rript . 



'Ihr following have rendered important service by identilyin^ 

 the mail-rial of groups in which they are speriali-t-: Mr. G. D 

 1 nlli r. Plants; Dr. J. I'. Moore. Leeches; Mr. V . C. Raker. 

 M'lllu-' i I >r. ('. D. Marsh, Copepods; Mr. k. Sharpe. O>tra- 

 coda; Di. A. 1C. Ortmann, Crayfishes; Mi A. L. \\irkrl. 

 AmpliipixU; Dr. J.Ci. Needham, Aquatic insects; Dr. ( Drnelius 

 r,iiiii.( add!. Hies; Mr. W. J. Gerhard, Hemiptera; Dr. P. <. 

 I Iriiieinaim and Mr>. Hlva Class, Bacteria; Mrs. Kb a ( !lass and 

 Mi. \\ . C. . \lU-e, Gases; Mariner and Iloskin- ("mmeiiial 

 ( 'hi-mi-i- . \\ iter analysis without charge. 



2. BIBLIOGRAPHY. 

 Abbot, C. C. 



'76 Note* "ii Some Fishes of the Delaware River. \<< ; :n.. 



pp. 828-32. 



'70 Mini I ..viiiK Fishes. Am. Nat.. Vol. 1\".. pp. 385-"; i. 

 Ailums. C. C. 



'08 I .^-cession of Birds. The Auk. Vol. XXV 



BirRe. F. A. 



ne and its Biological Significance. Vm \1 



\" Sept.. pp. 5 33. 



'07 ' >\ . . n I ' >lvcd in the \\'aters of \Vi-om-iii 1 .ik>-~. KI-IP"II \\i- i mn. 



.0 I 1907. pp. 118-139. 



'07 rhe Respiration of an Inland Lake. Tr.m- Ai 1-241, 



"10 ' ed in the Waters of Wisconsii r.'ill. Bur. 



H;'"N. \\\ III., pp. 1278-1294. 



Birge, E. A., and Juday, C. 



'11 1 'In- Inl.iiul Lakes of Wisconsin. fhe D the \\.n.i .n\<\ 



tliii ical Significance. \Vis. ' un<l N. Bull. 



n. i. XML. Sc. Series, 7. 

 Colton, H. S 



'08 : i n\ ii.niiiH-nt mi tin- (imwlh ui' I.vimi.i.i , , .hiiiiclla S 



I'l'. Ac. I'lliluclrlph: . JS. 



