Numb. 477. 
PHILOSOPHICAL 
TRANSACTIONS. 
For the Months of Auguft, September , Otlober> 
November, and 'December , i 74 f* 
I. ’Experiments and Obfervations, tending to illufirate the Nature 
and Properties of Electricity : By William Watfon, Apothecary, 
II. A Propofal to bring J mall pajfable Stones loon and -with Eafe 
out of the Bladder : By Rev. Stephen Hales, D. D. <& F.R.S. p. 502. 
III. An Account offome Experiments > lately made in Holland, upon 
the Fragility of unnealed glafs Veffels j communicated to the Pre- 
fident. p. 505. 
IV. ExtraEl of a Letter from the Reverend Henry Miles, D. D. 
& F. R. S. to the Prefident, relating to fome Improvements which 
may be made in Cyder and Perry. p. 516. 
V. Extratt of a Letter from Mr. Henry Baker, F. R. S. to Martin 
Folkes,. Efa\ Prefident of the Royal Society, concerning the 
1 ancient Bridewell at Norwich. p. 520, 
VI. Fart of a Letter from the Reverend Mr. G. Coftard to Mr. 
John Catlin, concerning a fiery Meteor fen in the Air on July 14. 
1745. p . 5 22. And one fe'enby Dr. Mortimer, Dec. 16. 1742. p . 524= 
VII. Extract of a Letter from Mr. Benj. Cook, F.R. S.to Mr. Peter 
Collinfon, F. R.S. concerning the Effeft which /^ Farina of the 
Bloffoms of different Sorts o/Apple-trees had on the Fruitof a neigh- 
bouring Tree • and the fame of Peas by Rev. Mr. Henchman, p. 525. 
VIII. Some Account of the Sinking down of a Piece of Ground, at’ 
Horfeford, in Norfolk; communitated by Mr. Arderon, of Nor- 
The CONTENTS. 
F.R.S. 
1. A Letter to Martin Folkes, Efa j Pr. R. S. 
2. A Letter to the Royal Society. 
3. A Letter to the Royal Society. 
Page 481. 
p. 444. 
p. 488. 
ibid. 
wieh,/0 Mr. Henry Baker, F. R. S . 
