Proceedings and List of Papers read. 307 



10. The influence of removal of the large intestine on the total 

 .alkaline and aromatic sulphates. 



The total sulphates are influenced in the same manner in the dogs 

 without the large intestine as in normal animals by increasing the fat 

 in the diet. The alkaline sulphates decrease with the diminution in 

 the quantity of nitrogen eliminated in the urine. This diminution is 

 due to the decrease in the alkaline sulphates, the same as in the normal 

 dogs. 



The increased quantity of fat in the diet has no influence apparently 

 on the quantity of aromatic sulphates eliminated in the urine. The 

 removal of the large intestine tends markedly to diminish the quantity 

 of aromatic sulphates daily eliminated, the quantity eliminated being 

 less than half the quantity found in a normal dog on the same diet ; so 

 that the removal of the large intestine evidently causes a marked dimi- 

 nution in the intestinal putrefaction, or rather has removed the prin- 

 cipal seat for intestinal putrefaction. (Table XXVI. Dogs 4 and 5.) 



February 2, 1899. 

 The LOED LISTEE, F.E.C.S., D.C.L., in the Chair. 



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

 ordered for them. 



The following Papers were read : 



I. " Sets of Operations in Eelation to Groups of Finite Order." By 

 A. N. WHITEHEAD, M.A. Communicated by Professor A. E. 

 FORSYTE, F.E.S. 



II. " Note on the Enhanced Lines in the Spectrum of a Cygni." By 

 Sir NORMAN LOCKYER, K.C.B., F.E.S. 



III. " On the Effects of Strain on the Thermo-electric Qualities of 



Metals." By MAGNUS MACLEAN, M.A., D.Sc. Communicated 

 by LORD KELVIN, F.E.S. 



IV. " The Constitution of the Electric Spark." By ARTHUR SCHUSTER, 



F.E.S., and G. HEMSALECH. 



VOL. LXIV. 2 B 



