158 New Patents. [Ave. 
JUST PUBLISHED. 
A Practical Treatise on the Strength of Cast Iron: intended for the 
Assistance of Engineers, Iron Masters, Architects, &c. Also an 
Account of some Experiments, with an extensive Table of the Proper- 
ties of Materials. By Thomas Tredgold, Civil Engineer. 8vo. Four 
Plates. 12s. 
A Letter to Sir Humphry Davy, Bart. on the Application of Ma- 
chinery to the Purpose of calculating and printing Mathematical 
Tables. By Charles Babbage, Esq. MA. Member of the Cambridge 
Philosophical Society, and Secretary to the Astronomical Society of 
London. 4to. 1s.6d. 
Lectures on the Elements of Botany: containing the Descriptive 
Anatomy of those Organs on which the Growth and Preservation of 
Vegetables depend. By Anthony Todd Thomson, FLS. MRCS. 
With Plates and Numerous Wood-Cuts. 8vo. Vol. I. 11. 8s. 
The Study of Medicine: comprising its Physiology, Pathology, and 
Practice. By John Mason Good, MD. FRS. Member of the Royal 
College of Physicians, London, &c. 8vo. 4 large Vols. 
On the Use and Abuse of Friction, with some Remarks on Motion 
and Rest, as applicable to the Cure of various Surgical Diseases, and 
particularly Gout and Rheumatism. By John Bacot, Member of the 
Royal College of Surgeons, London. 8vo. 2s. sewed. 
Observations on the Anatomy, Physiology, and Pathology of the 
Nervous System. By J. Swan, Member of the Royal College of Sur- 
geons. 8vo. With Nine Plates. 10s. 6d. 
The Seats and Causes of Diseases investigated by Anatomy; con- 
taining a great Variety of Dissections, and accompanied with Remarks. 
By John Baptist Magagni, Chief Professor of Anatomy, and Presi- 
dent of the University at Padua. Abridged, and elucidated with 
copious Notes. By W.Cooke, Member of the Royal College of Sur- 
geons, London. 2 Vols. Thick Svo, 11. 11s, 6d. 
ARTICLE XIII. 
NEW PATENTS. 
H. Septimus, Clapton, Middlesex, merchant, for a bolt or fastening, 
particularly applicable as a night-bolt.—June 4. 
W. Huxham, Exeter, iron-founder, for improvements in the con- 
struction of roofs.—-June 4. 
H. Colebank, Broughton, in Furness Kirkley Ireleth, Lancashire, 
tallow-chandler, for an engine for cutting, twisting, and spreading of 
wicks.—June 4, 
J. Barton, deputy comptroller of our mint, for a certain process for 
the application of prismatic colours to the surface of steel and other 
metals, and using the same in the manufacture of various ornaments. 
—dJune 4. 
J. Frost, Finchley, Middlesex, builder, for a new cement or artifi- 
cial stone.—June 11. 
W. Feetham, Ludgate-hill, stove-maker, for a certain improvement 
on shower baths.—June 11. 
