Numb. 4 zo. 
PHILOSOPHICAL 
TRANSACTIONS 
For the Months of Align ft and September 1731. 
The CONTENT S. 
L The Defer ipt ion of a new Injirument for taking 
Angles. By John Hadley, Effo Fice-Trejident 
5 . communicated to the Society on May 1 5. 
173 1. 
II. An ExtraB of a Differtation De Stylis Vete- 
rum, & diverfis Chartarum generibus, \_by 
the Hon. Sir John Clerk, one 0} the Barons of the 
Exchequer in Scotland, and F. $.] By Roger 
Gale, Efq-y Fce-Brefident and Treafurer <!(. S. 
III. Some Experiments concerning the poifonous 
Quality of the Simple Water diftilled from the. 
Lauro-cerasus, or common Laurel, 
made upon Dogs , at Toppingo- Hall in 
Effex, Auguft the 14th 1751. and others 
made before the ROYAL SOCIETY in their 
(fepofitory. By Cromwell Mortimer, M. D. 
5 ^. S. Secret. 
IV. A 
