OCTOBER. 



Engravings of the following Objects : i. An Odometer, for measuring 

 the Distance run by a Carriage. By R. L, Edgeworth, Esq.— ^ 

 2. 3. Figures to illustrate the Propagation of Electricity. By Df . 

 Oersted.— 4. Diagram for desc ribing the Wheels and Pallets of Gra- 

 ham's Escapement for Clocks. By Mr. Bennett.— 5. An Escape- 

 ment by Thiout.— 6. Machine for facilitating the Work of Shoe- 

 makers. — 7. An improved Crane. By Mr. Gilbert,— -8. Method 

 of using the common Chain in PuUies to greater advantage than 

 Ropes. 



I. Letter from R. L. Edgvvorth, Esq. containing a Description of an 

 Odometer for a Carriage, and some Remarks on the Patent Boring 

 Machine of Mr. Ryan Si 



II. Remarks on a Paper of Mr. Boswell, on invariable Pendulums, &c. 

 In a Letter from J. G -. ^4 



III. A third Series of Experiments on an artificial Substance which 

 possesses the principal characteristic Properties of Tannin ; with 

 some Remarks on Coal. By Charles Hatchett, Esq. F.R.S 86 



III*. Discussions relating to the Claims of Lavoisier as an Inventor of 

 Chemical Theory. In a Letter from Jonathan Stokes, M.D 98 



IV. Extracts from a Collection of Papers ©n the Subject of Athletic 

 Exercises. By Sir John Sinclair, Bart. M. P 103 



V. Reverie considered as connected with Literature. By the Rev, 



. Johnson Grant, A. B. of St. John's College, Oxon 108 



Vt. Account of a Crane, with the Description of a Method of working 



the common Chain in Machinery, so as to exceed Ropes in flexibility 

 and strength. By Mr. Gilbert Gilpin, of Old-Park Iron Works, 

 near Shifnal 126 



VII. Construction of the Anchor and Pallets in Graham's dead beat 

 Escapement. By Mr. J. Bennett 133 



VIII. Investigation of the Principles which shew that it would be 

 much safer to jump from the Back than from the Side of a Carriage 

 when ran away with by unruly Horses. In a Letter from J. E. 

 Conant, Esq 135 



IX. Memoir on Ultramarine, by Messrs. Desormes and Clement. . 136 



X. Abstract of a Memoir on Human Hair, read at the National Insti* 

 tute on the 3rd of March, by M. Vauquelin e 141 



XI. Abstract of a Memoir on a new Principle ia Meteoric Stones, by 

 A Laugier ...147 



XII. Account of the dreadful Fall of the Summit and Part of Mount 

 Rosenberg, which happened on the 2d of last Month 1 49 



XIII. Farther Remarks and Experiments on Vision under Water. 

 In a second Letter from A Correspondent ) with some Observations 

 by the Editor 153 



XIV. Experiments and Observations on the adhesion of the Particles 

 of Water to each other. By Benjamin, Count Rumford, F.R.S. 157 



XV. Observations on some Errors contained in Mr. Thomas Reid's 

 Paper, published in the Journal of last Month, f rom A Corre* 

 spondent , . * , . , 159 



XVI. Description of a Machine for the use of Shoemakers. By Mr, 

 Thomas Parker .; ^ i-, . . . , 16c 



XVII. On the. Propagation of Electricity. By Dr. Oersted 165 



