[ >9 ] 
JAMES MANN 
AND 
JAMES AYSCOUGH. 
OPTICIANS, 
At the Sign of Sir Ifaac Newton and Two Pait 
of Golden Spectacles , near the Weft-End of 
St. Paul’s, London. 
M AKE and Sell, Wholefale and Retail, the 
fineft Chryftal Spectacles, ground upon 
Brais Tools (approved by the ROYAL SOCIETY 
and the greateft Mathematicians) fet in Gold, Sil¬ 
ver, Tortoifefhell, Horn, Leather, and all man¬ 
ner of ways that are molt convenient and beauti¬ 
ful. Alfo curious Reading Glafies of Rock 
Chryftal, or the whiteft Flint, contrived to turn 
into Cafes of various Kinds, to be carried in the 
Pocket without Trouble or Damage. Likewife 
Spectacles of true Venetian Green-Glafs. 
They make Concaves for Myops or Short- 
lighted Perfons, which are fo nicely adapted to 
every Degree of Short-fightednefs, and by fo re¬ 
gular a Method, that Perfons, after being once 
fitted, may at all times be furnifhed with them 
(though at ever fo great a diftance) as exaCt as if 
prefent. 
REFLECTING TELESCOPES on the Prin¬ 
ciples of Sir Isaac Newton, and Mr. Gregory, 
made with the greateft Accuracy, and the Appa¬ 
ratus 
