CONTENTS. 
recommendation of the Board of Longitude, for ascertaining 
the Longitude of Madeira and of Falmouth. In a Letter to 
Thomas Young, M. D. For. Sec. R. S, and Secretary to the 
Board of Longitude. By Dr. John Lewis Tiarks. Com- 
municated by Dr . Young. - - - 360 
XX. Of the effects of the density of air on the rates of chrono- 
meters. By George Harvey, F. R. S. E. &c. Communi- 
cated by Davies Gilbert, Esq. V . P. R. S. - 372 
XXI. A Letter from Lewis Weston Dillwyn, Esq. F. R. S. 
addressed to Sir Humphry Davy, Bart. P. R. S. 413 
XXII. An account of the organs of generation .of the Mexican 
Proteus, called by the natives Axolotl. By Sir Everard 
Home, Bart. V . P.R. S. - - - 41 9 
XXIII. An account of Experiments on the velocity of Sound, 
made in Holland. By Dr. G. Moll, Professor of Natural 
Philosophy in the University of Utrecht, and Dr. A. Van 
Beek. Communicated by Capt. H. Kater, F. R. S. 424 
XXIV. A Catalogue of nearly all the principal fixed Stars be- 
tween the zenith of Cape Town, Cape of Good Hope, and the 
South Pole, reduced to the 1st. of January, 1824. By the 
Rev. Fearon Fallows, M. A. F. R. S. - - 457 
XXV. Remarks on the Parallax of « Lyrce. By J. Brinkley, 
D. D. F. R. S. &c. Andrew’s Professor of Astronomy in the 
University of Dublin. - - - - 471 
APPPENDIX. 
Presents received by the Royal Society from November, 1823, to 
June 1824. 
Index. 
Meteorological Journal kept at the Apartments of the Royal So- 
ciety, by Order of the President and Council. 
