(5j) Numb. 4 , 
PHILOSOPHICAL 
TRANSACTIONS. 
Munday 5 June 5. 1665. 
The Contents. 
A 'Relation of feme extraordinary Tydes in the Weft-Ifles of Sc ot- 
land, by Sr. Robert Moray. The judgment of Monfieur Au- 
zout, touching the Apertures s/Qbjed-glaffes, and their pro- 
portions in refpeU of thefeveral lengths of Telefcopes ; toge- 
ther with a Table thereof Confederations of the fame P erf on 
upon Mr. Hook’s New Engine for grinding ©/©ptick-glaffes. 
Mr. Hook’s Thoughts thereupon . Of a means to illuminate an 
Object in what proportion one pleafeth - 3 and of the diftances , that 
; are requiftte to burn Bodies by the Sun. A further accorr.pt by 
Monfieur KwT.ox\tofSigniorCzmpa.msBook, and Performances 
about Opfick- Glafles. Campahi s Anfwer theieunto 3 and Mr. 
AuzoutV Animadverfions upon that Anfwer, An accompt of Mr 
Lower’; newly puhlijhed Vindication of Dr. Willis’; Diatrihade 
Febribus. • 
A Relation of feme extraordinary Tydes in the, 
Wef-lfles of Scotland , as it was commu- 
nicated by Sr. Robert Moray. 
N that Trad of Ifles 5 on theWeft of Scotland } ca\\Qd 
by the Inhabitants, the Long-Ijland, as being about 
1 00. miles longfrQm North to Souths there is a mul* 
Y Situde of fmall Iflands, iituated in a Fretum.j or Friths 
thatpaffes between the Ifland of Euft, and the Herr is ; amongft 
which, there is one called Berneray } fome three miles long ? and 
H more.. 
