( 71 ? ) 
went into the Hole of a Board, whereby it was ferew’d 
down pretty hard on the ocher Glaffes, and fix’d, to 
the whole Machinei On the top'of .this upper Receiv-' 
er I laid the Brafs Plate, wet Leather, and Brafs Springs 
which contain’d the Bodies to be dropt ' ;; i 
Having acquainted His Majefty with what I had pre- 
par’d, he order d me to fhew him the Experiment wnth 
this long compounded Receiver, and 
when 1 made- it before him and her Royal Highnefs,: he 
was pleas’d f by pulling down a String fix’d to a Lea- 
ver at the top of the Machine ) to let loofe the Bodies 
himfelf, to fee that the Experiment was fair. 
:W-hen the Receiver .was^fuU of common Aimbefore 
Pumping, the Guinea, came <to 'the Bottom, jiift. as the 
PapetiWas about the Middle of the fecond.Giafs ; buc 
when the Receiver^was .exhaiihed, the .Guinea and Pa- 
per came to the Bottom precifely in the fame InRanjt of 
Time., -'C io 'htiat dl .ja 
Upon: my giving ait, aacoum^of rthc Succefsj^f ;this 
Ex perimenc to the S' :they order’d-me tp; r^eac 
it before them on the 5th Day ,of £>w«?^^n 71 7^: being 
the Thur[day next after the Yearly Meeting focchoofing 
Officers on St, .Andrew's Day? x)n which Day an {an- 
nual Experiment is appointed to , be-maidd, in .Confor- 
mity to the. Will jof theiri late wenthy, Nleinber arid, Be? 
nefadlor Sir Coj^lej. . jUTiUL; , .. d 
I made the Experiment firft with two of the Rccei* 
vers:;, then iwitiKali the four ; : dropping afiGuinea.and a. 
fmall Piece of Paper together ; and the Succefs anfwer’d 
Expedation : But not being willing to try with a Down- 
Feather, becaufe I fear’d the Air might infinuate between 
fbme of the Glaile8,-by reafon the Number of Perfons 
prefent lhak’d the Room , the Society order’d me to 
make the Experiment at home before one or more of 
their Members. 
Z z z 2 z 
Martin 
