28 4 
THOMPSON YATES LABORATORIES REPORT 
A Piece of the Right, intact, Vagus was now Removed, in length 
8 CENTIMETRES 
The potential differences between points upon the longitudinal surface and the two cross sections 
were measured. 
Daniell 
Daniell 
Point (i) 
positive to upper section 
•OOO264. 
to lower section 
•OO2376 
,, (*) 
n >» 
•OOI32O 
11 
•OO4092 
» (3) 
ii ii 
•OOI320 
11 • 
•CO4.C92 
„ (+) 
11 ii 
•OO2376 
11 
.. -005016 
n (5) 
11 11 
... -003036 
11 
•• '005808 
„ (6) 
ii ii 
•OO264.O 
11 
.. -005280 
» (7) 
ii ii 
■OO2376 
11 
• •004356 
(8) 
the lower cross section n 
egative to upper 
•000792 Daniell. 
A new cross section was now made at point (6). The potential difference between longi- 
tudinal surface and this (maximum) was '007392 Daniell. 
The resistance of nerve 6 centimetres long 69,300 ohms, or 11,550 per centimetre. 
The lower centimetre was now excised, leaving the nerve 5 centimetres long. 
This piece of nerve zvas then immersed in tap water and left in this for twenty-five minutes. Upon 
removal the nerve was slightly rigid, shortened to 47 centimetres, but did not appear 
swollen or pulp}'. 
The resistance was 96,300 ohms or 19,260 per centimetre. 
The potential differences measured — 
Point (1) positive to upper section 
„ (2) 
11 (3) » 11 
11 (+) 
Daniell 
•OI 3068 
•OI452O 
•01 5048 
•016632 
to lower section 
Daniell 
•0141 14 
•015182 
•0I5I82 
•OI4256 
„ (5) the lower cross section negative to the upper -002904 Daniell. 
The examination of the second nerve was as the observations recorded shew, a repetition of the 
procedure of the examination of the first. 
Experiment B 
Sciatic Nerve of Dog. Bit. II, 102 
On Thursday. July 26, 1900, Professor Sherrington performed the pre- 
liminary operation upon this dog. 
A piece 1 centimetre long (about) was removed from the extreme upper end of the right sciatic 
nerve trunk. The wound healed subsequently in the usual manner with no accident. On Tuesday, 
August 7, 19CO, the dog was killed, that is on the twelfth of the days succeeding the day of the operation. The 
right sciatic nerve was removed, 4 centimetres being cut off below the operation section and thrown away, 
and a piece 5 centimetres being taken from below this for the purposes of the experiment. 
