| XLII. A Letter from Thomas Lawrence, M. D. to William Heberden, M. D. and F. R. S. concerning the Effects of Lightning, in Essex-street, on the 18th of June 1764.
|
p. 235.
|
| XLIII. An Account of what appeared on Opening the Body of an asthmatic Person: By W. Watson, M. D. F. R. S.
|
p. 239.
|
| XLIV. A Letter to the Marquiss of Rockingham, with some Observations on the Effects of Lightening.
|
p. 246.
|
| XLV. Solis Defectus observatus in Collegio Romano a Patribus Societatis Jesu die prima Aprilis Anno MDCCLXIV. Tempore post mediam noctem.
|
p. 254.
|
| XLVI. The Description of a New Hygrometer, invented by James Ferguson, F. R. S.
|
p. 259.
|
| XLVII. Experiments and Observations on the Compressibility of Water and some other Fluids, by John Canton, M. A. F. R. S.
|
p. 261.
|
| XLVIII. Concise Rules for computing the Effects of Refraction and Parallax in varying the Apparent Distance of the Moon from the Sun or Star; also an easy Rule of Approximatian for computing the Distance of the Moon from a Star, the Longitudes and Latitudes of both being given, with Demonstrations of the same: By the Rev. Nevil Maskelyne, A. M. Fellow of Trinity College, in the University of Cambridge, and F. R. S.
|
p. 263.
|
| XLIX. Extract of a Letter from Mr. John Winthrop, Professor of Mathematicks in Cambridge, New England, to James Short, A. M. F. R. S.
|
p. 277.
|
L. Observation
