( 49 ) 
Wheel ; for the frelh Air may be driven in a very 
little Time to the Place where the Men are at work, 
though at theDiftance of a, 3, or 4 Miles, and there- 
fore allb to any intermediate Space ; whereas the 
Practice now is, either to make a double Drift with 
Communications between the two for the Circula- 
tion of the Air, or to fink perpendicular Shafts or 
Pits from the Top of the Hill over the Adit ; both 
which Methods are very expenfive, and (I dare lay) 
will, upon Tryal, be out-done by the Application of 
my Machine. I am, 
SIR, 
1 2"our moji humble Servant, 
J. T. Defaguliers, 
IV. The Cafe of a Cataleptick Woman : Com- 
municated to the Royal Society by Richard 
Reynell, Apothecary , London. 
/tNN Bullard, a Servant, about one and twenty 
Years of Age, had been for lbme time irregular 
in her Menfes , and very much afflicted for the Lois 
of a Friend. July the Tenth, 1730. Ihe complain- 
ed of a Pain in her Head, Sicknefs in her Stomach, 
G with 
