Numb. 463. 
Beginning V o l. XLII. 
PHILOSOPHICAL 
transactions. 
For the Months of January and February , 1741 -2. 
The C O N T E N T S. 
I. Extract of a Letter from Mr. Chriftopher Mafon, 
concerning a Fire-ball feen in the Air , and a great 
Explof on heard, Dec. n. 1741* communicated by 
Nic. Mann ,Efq-, 
II. A Letter from Edward Milward, M. ©. to Mar- 
tin Folkes, Efqj Tr. R. S. concerning an Antidote 
to the Indian Poifon in the Weft-Indies. 
III. A Letter from Edward Nourfe, F. R. S. one of the 
Surgeons to St. Bartholomews Hofpital , to the Pre- 
sident 4724^ Fellows of the Roy^l Society, giving 
an Account of fever al Stones found in Bags, in the 
Bladder of one Mr. Gardiner. 
IV. Some further Obfervations concerning Electricity, 
by J. T. Defaguliers, LL. ©. F. R. S. 
V. Extract of a Leter from the Hon bIe Edward Legge, 
Efq-, F. R. S. Captain of his Majes ty’s Ship the 
Severn, containing an Obfervation of the Eclipfe of 
the Moon, Dec. 21. 1740. at the f (land of St. Ca- 
tharine on theCoaft ofB rafil ; communicated to the 
Royal Society by the Rev* Jof. Atwell,©.©'. F.R.S. 
VI. An Obfervation of extraordinary Warmth of the 
Air in January 1741-2. communicated in a Letter 
from the Rev. Mr. H. Miles to Mr. J. Earnes, F.R.S. 
VII. The Defcription and Ufes of the Steel-yard Ba- 
lance Swing , invented and made by Mr. Timothy 
Sheldrake. VIII. A 
