4OO G. G. SCOTT. 



fin regenerates very slowly as compared with the other two as 

 may be seen in Table III. 



GENERAL CONCLUSIONS. 



1. That low temperatures inhibit regeneration in caudal fin of 

 Funduhis licteroclitns. 



2. That the rate of regeneration bears no relation to the degree 

 of injury to the caudal and pectoral fins. 



3. That regeneration is greater in the younger than in the 

 medium and older fishes which is in line with the theory that 

 regeneration is a growth phenomenon. 



4. That regeneration is greater in the fish that have been fed 

 as compared with that in the fishes not fed. 



5. That there is an indication that the fins used or needed most 

 (/. e., caudal) regenerate more rapidly than the less needed fin 

 (pectoral), or in other words there is an indication of adaptation 

 in regeneration. 



I would like to thank Professor W. E. Kellicott, of the Woman's 

 College of Baltimore, for suggestions as to the statistical method 

 involved and also Professors T. H. Morgan and H. E. Crampton 

 of Columbia for friendly criticism. 

 COLLEGE OF THE CITY CF NEW YORK. 



LITERATURE. 

 Broussonet, M. 

 1786 Observations sur la regeneration de quelques partes du corps des Poissons. 



Hist, de 1'Acad. Roy. des Sciences, 1786. 

 Emmel, V. E. 



'04 The Regeneration of Lost Parts in the Lobster. 35th Annual Report of the 



Commissioners of Inland Fisheries of Rhode Island. 



'06 Relation of Regeneration to the Moulting Process in the Lobster. 36th An- 

 nual Report of the Commissioners of Inland Fisheries of Rhode Island. 

 Morgan, T. H. 



'01 Regeneration. Macmillan, 1901. 

 Morril, C. V. 



'06 Regeneration of Certain Structures in Fundulus heteroclitus. Biological 



Bulletin, Vol. XII., No. I. 

 Osburn, R. C. 



'06 The Functions of the Fins of Fishes. Science, N. S., Vol. XXIII., No. 589. 

 Zeleny, C. 



'03 A Study of the Rate of Regeneration of the Arms in the Brittle-star, Ophio- 



glypha lacertosa. Biological Bulletin, Vol. VI. , No. I. 



'05 The Relation of the Degree of Injury to the Rate of Regeneration. Journal 

 of Experimental Zoology, Vol. II., No. 3. 



