TRANSACTIONS OF SECTION 1. 673 
knowledge of what a moderate dose of alcohol was, though he had no conception 
as to what constituted an ‘ extremely’ moderate dose. He had learnt to-day that 
the amounts of alcohol that could be present in the blood as physiological and 
pathological standard amounts—viz., 0°2 per cent. and 0°5 per cent. respectively, 
as shown by Dr. Dixon—were strictly proportional to the amounts of 0:02 and 0:05 
respectively for chloroform. He was conscious that the ethical side of the alcohol 
question had not been touched upon. In the present state of the matter it was 
the most desirable method of procedure, and was the best way by which to arrive 
at definite and disinterested scientific conclusions as to the results produced by 
aleohol upon the physical tissues of the body, and upon the heart, brain, and circu- 
lation. 
TUESDAY, AUGUST 6. 
Discussion on the Value of Perfusion Euperiments. 
The following Paper and Report were then read :— 
1. Certain Problems in Electro-physiology. By Dr. N. H. Atcock. 
In this paper the author considered the analysis of nerve, non-medullated and 
medullated nerves from the same amount being compared. It appeared that the 
amount of water was greater, and the total salts slightly less, in the former than in 
the latter. If the non-medullated nerves be considered to represent the axis- 
cylinders of the medullated, it follows that the concentration of salts in their 
structure is less than in the medullary sheath. KCl was specially considered ; 
the amount of this is not greater than 0:1 per cent. in the axis cylinder, and this 
salt is present in rather less amount in the medullary sheath, although Macallum’s 
micro-chemical reactions do not show its presence. 
2. Report on the Ductless Glands.—See Reports, p. 400. 
1907. Gb 
