On the Wandering (Migrating) Cells of the Frog. 267 



November 17, 1892. 



Sir JOHN EVANS, K.C.B., Vice-President and Treasurer, in the 



Chair. 



Mr. Frank E. Beddard, Professor C. Le Neve Foster, Dr. Hans 

 Gadow, Mr. Francis Gotch, and Professor T. Jeffery Parker (elected 

 1888) were admitted into the Society. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



In pursuance of the Statutes, notice of the ensuing Anniversary 

 Meeting was given from the Chair. 



Professor W. G. Adams, Professor Riicker, and Professor W. C. 

 Williamson were by ballot elected Auditors of the Treasurer's 

 accounts on the part of the Society. 



The following Papers were read : 



I. "On the Characters and Behaviour of the Wandering 

 (Migrating) Cells of the Frog, especially in relation to 

 Micro-organisms." By A. A. KANTHACK, M.R.C.P., M.B., 

 and W. B. HARDY, M.A. Communicated by Professor M. 

 FOSTER, Sec. R.S. Received November 1, 1892. 



(Abstract.) 



The paper deals with the results of an investigation of the struc- 

 ture and functions of the wandering (migrating)* cells of the Frog. 

 Certain preliminary observations on Mammals and Crustacea are also 

 included. 



The results may be summarised as follows : 



The histology of the wandering cells of the Frog is almost identical 

 with that of the wandering cells of Astacus. The different cells are 

 very clearly marked off from one another when seen alive or when in 

 preparations. Excluding red blood corpuscles and platelets, which 

 stand on a different footing from all the rest, the following forms are 

 found : 



* This appellation is used in preference to suet terms as " leucocyte " or "white 

 corpuscle," since it is more inclusive. 



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