TO CORRESPONDENTS. 
Observations on the Present State of Nautical Astronomy, by Mr Epe ‘4 
warp Rippis, in our néxt. 
Dr. Mirvar on the Rose of Jericho.—Mr. Joun Muni on the Boil« 
ing Springs of Java, and on the Decomposition of Metallic Salts by he 
fagnet, have been received, and shall have an early place. _ 
Ak 
Just published, Nat Fe 
R, THOMAS SIMPSON’S ELEMENTS of GEOMETRY, a 
new Edition, in Octavo, Price 7s. in Boards, printed from a Gaye 
corrected by the Author, with additional Notes, and an APPENDIX, con- | 
taining a Description of the Analytical and Synthetical Modes of Rea-_ 
soning made use of by Mathematicians ; an Account of the lost Analytical _ 
_ Works of Euclid and Apollonius, and of the several Be rik the ‘Mo- 
derns to restore them. : 
Printed for J. Collingwood, Strand: i | 
Of whom may be had, New Editions of all ‘Mr, Tuomas: Simpson” 3: 
Mathematical Works. : 
ae Get IS Si ak Sa a anes ae ae 
Just published, Price 3]. 10s. Boards, , <= 
“HE SECOND PART of the FIFTH VOLUME of the TRANS- 
_ ACTIONS of the GEOLOGICAL SOCIETY 
Published by W. Phillips, George Yard, Lombard Street. 
ENGRAVINGS, 
Vol. XLIX. A Plate to illustrate Dr. Evans’s Communication on 4 
Terrestrial Magnetism ; a new Electro-atmospherical Instrument ; and 4 
Mr. Anvrew Horn’s "Paper on Visionx—A Quarto Plate to illustrate j 
Mrs. Inserson’s Physiology of Vegetables.—A Plate to illustrate the — 
Solar Spots which appeared during the Year 1816 ;—and Mr. Brvan’s — 
Improvement on the Stiding- Rule. —A Plate descriptive of Mr.Emmett’s . 
Instrument for the Measurement of the Moon’s Distance from the Sun, 
&c. ; also a New Refleeting Goniometer.—A Plate to illustrate Chevalier 
Baaver’s Method of communicating Rotatory Motion; Lieut, Suunp- — 
HAm’s improved Method of working a oe and STEELE’s new Mo- = 
dification of Nootu’s Apparatus, &c. 7 
Vol. L. A Plate to illustrate Sir Eve ouey Davy’s new Reseanehae @ 
on Flame, and Sir Georce Caytey’s Paper on Acrial Navigation. — 
A Plate representing a Section of the Pneumatic Cistern, with the com. — 
pound Blow-pipe of Mr. Hare; and a Sketch of a Steam-Vessel in- 
tended to run between London and Exeter.—Representation of Apparatus — 
for Sublimation of Iodine—Model of a Safety Furnace by Mr. BAKkEweELy | 
—Apparatus for consuming Fire-damp in the Mine—and Apparatus for — 
re-ljghting' the Miners’ Davy.—A Plate illustrative of the New Patent © 
Horizontal Water-Wheel of Mr. Apamson.—A Plate illustrative of Mrs, | 
Ispersox’s Theory of the Physiology of Vegetables.—A Plate to illus . 
trate Mr. Dicxinson’s new System of Beaconing. 4 
Vol. LI. A Plate Maatative: of Mr. Carer Lorrr’s Carer on. the | ; 
Probability of Meteorolites being | projected from the Moon.—Two 
Plates: one, of Mr. H. Trirton’s Improved Apparatus for Distillation ;— 
and another, of the Figures in Braptey’s Gardening illustrative of the Ars 
ticle on the Kareiposcore.—A Plate illustrative o Mrs. Inpetson’s Pas | 
per on the Anatomy of hi ings: and seopbaaioes LD’s On. arth puse a 
