{ fo8 ) 
mers’d, and the Body reciprocally to the Menflruum^ and 
both to a6l on one another with greater Vigour, than 
either of their own Particles do upon their contiguous 
Fellows ; by which means a Separation of Parts muff (I 
think) confequently follows. Thus being at liberty, 
they with t\\<^ Merijlruum become as one Body, and re« 
main lufpended in any part of it by their Mutual At- 
traction. And that one Menfiruum in this Cafe fhould 
affeCl one Body more than another, is no more than why 
the Magnet fhould aifed Iron only. 
V. Letter frm the ^Verend Mr. W. Derham, 
S. to Dr. Hans Sloane, R. S. Sccr. gL 
Vtng an Account of Jome Inundatio?is^ Moyiflrons 
(Btfths.^ Appearances in the HeaVens^ and other Ob^ 
ferVables he received from Ireland. With his Ob^ 
ferVations on the Eclipfe of the Sun^ Sept. and 
of the Moon^ Sept, 1 8 , i;^o8. 
Upminflery OBoher 26. lyoB. 
SIR, 
I Received fome time fince a Letter from Ma,ghrafelt in 
the North of Irelmd, from a very Intelligent Perlbn 
there, and great Well-wifher to oi\r Royal Society.^ one 
Mr. Neve ; who out of his own good Will had collect- 
ed fome of the, Lough-Neagh Petrifications, Pieces of the 
~ Ciiarits-Caujivayy and Other Curiofities, and fent them, he ■ 
tells me, as far as Briftol : But hearing the Society had 
■ of them already in’ th^r Repofitory, he took no further 
care of theim 
He ^ 
