[ 10 ] 
VI. Obfervations upon the RffeSls of RleEtricity 
applied to 0 Tetanus, or Mufcular Rigidity, 
of four Months Continuajice . In a Letter 
to the Royal Society. By William Wat- 
fon, M. D. F, R. S. Me?nber of the 
Royal Colleges of Phylicians of London 
and Madrid, and Phyfician to the Found- 
ling Hofpital. 
To the Royal Society. 
Gentlemen, 
Read Feb. 10, | ' VER lince your eftablifhment, the 
1763. communicating the hiftory of un- 
common difeafes has feldom failed of a favourable 
reception by you, and has been frequently thought to 
merit a place in your journals and regifter-books. 
This has emboldened me to lay before you the fol- 
lowing hiftory. 
Catherine Field, a girl in the Foundling Hof- 
pital, aged about feven Years, and otherwife a healthy 
child, having been difordered a few days with what 
were confidered as complaints arifing from worms, 
was obferved, on Thurfday, July 8, 1762, to open 
her mouth with great difficulty. This particular cir- 
cumftance increafed fo much, that by the Sunday 
following, when I firft faw her, her teeth were fo 
much confined, it was with difficulty that even li- 
quids could be admitted into her mouth. She had 
two days befpre parted with two worms, and had 
feveral 
