( M7 ) 
Kind may be of Ufe at Sea to take the Diftance of 
the Moon’s Limb from the Sun or a Star, in order to 
find the Ship’s Longitude, when the Theory of that 
Planet is perfected, I leave to Trials to determine. 
The Society have the Satisfa&ion of knowing that 
Theory to be already brought to a good Degree of 
Certainty and Exa&nefs, thro’ the confummate Skill 
in Aftronomy, and indefatigable Diligence in obferv- 
ing, of a very learned Member : and have great Rea- 
fon to hope, that .this ufeful and difficult Part of 
Aftronomy will in a little time appear to be abfolute- 
ly com pleated by the continued Labour and Applica- 
tion of fome of their own Body. 
II. An ExtraEl of a Differtation De Stylis Vete- 
rum, & diverfis Chartarum generibus, \_by 
the Hon. Sir John Clerk, one oj the Barons of the 
Exchequer in Scotland, and F. 5.] By Roger 
Gale, Efq, Vtce-Brefident and Treasurer Of- S. 
T H E learned and judicious Author takes occafion 
from fome antique Brafs Implements found near 
the Wall of Antoninus Pius., now named Graham’s 
Dykeyn Scotland , to give us this curious Differtation 
upon the Stylus , an Inftrument ufed by the Ancients 
for Writing, with the Figures of fome of them annex’d 
in .a Copper Plate ; two of which are reprefented in 
the Shape and Form of the Roman Fibula ; but the 
Author is of Opinion they were deligned for a differ, 
ent Purpofe, for which he produces very cogent Rea- 
fons. 
X i 
He 
