Presents. 
HEYGATE (James.) Oil Tic Douloureux, or Neuralgia, together with a few 
cursory remarks on intermittent fever, and its supposed connexion with 
the former. 8vo. Edinburgh 1836. 
HITCHCOCK (E.) Final Report on the Geology of Massachusetts. 2 vols. 
4to. Amherst 1841. 
HOFLER (C.) Observations on the Causes of the Decline of German Com- 
merce during the sixteenth and seventeenth centuries. 4to. Munchen 1842. 
HOGG (J.) A Catalogue of Sicilian Plants ; with some remarks on the Geo- 
graphy, Geology, and Vegetation of Sicily. 8vo. London 1842. 
HOLTZAPFFEL (C.) Turning and Mechanical Manipulation, intended as 
a work of general reference and practical instruction, on the Lathe, and 
the various mechanical pursuits followed by amateurs. 8vo. London 1843. 
HOOD (C.) On some peculiar Changes in the internal structure of Iron, in- 
dependent of and subsequent to the several processes of its manufacture. 
12mo. London 1842. 
On the Properties and Chemical Constitution of Coal ; with re- 
marks on the various methods of increasing its calorific effects, and pre- 
venting the loss which occurs during its combustion. 8vo. London 1841. 
A Practical Treatise on warming Buildings by Hot Water ; and 
an inquiry into the laws of radiant heat and conducted heat : to which are 
added, Remarks on Ventilation, and on the various methods of distributing 
Artificial Heat, and their effects on animal and vegetable physiology. 8vo. 
London 1837 . 
HOSKING (W.) Essay and Treatises on the Practice and Architecture of 
Bridges. 8vo. London 1842. 
An Introductory Lecture, delivered at King’s College, 
London, January 24, 1842, on the principles and practice of Architecture. 
To which are now added a few Notes, and some further remarks on the 
modern practice of competition 8vo. London 1842. 
FIOSKINS (S. Elliott.) Tables for the extemporaneous application of Cor- 
rections for Temperature to Barometric Observations, deduced from the 
tables published in the Report of the Committee of Physics, Royal Society. 
8vo. Guernsey 1842. 
On the Chemical Discrimination of Vesical Calculi ; by 
E. A. Scharling; translated from the Latin, with an Appendix, containing 
practical directions for the recognition of Calculi (with plates). 8vo. Lon- 
don 1842. 
IRVINE (R. H.) Some Account of the General and Medical Topography of 
Ajmeer. 8vo. Calcutta 1841. 
JACOBI (M. H.) Upon some Electromagnetical Apparatus. Upon my own 
Electromagnetical Labours in 1841. Description of an improved Voltago- 
meter. A Method for determining the Constants of the Voltaic Chain. 
Upon the Development of Galvanoplasticks. Notes upon Galvanic Con- 
ductors. 8vo. St. Petersburg 1841-1842. 
Sur les Remarques de M. Becquerel relatives a ma mesure 
comparative de faction de deux Couples Voltai'ques, fun cuivre-zinc, l’autre 
platine-zinc. 8vo. St. Petersbourg 1841. 
JAY (W.) War and Peace; the evils of the first, and a plan for preserving 
the last. 8 vo. London 1842. 
Donors. 
The Author. 
Edward Everett, Esq. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Translator. 
The Directors of the East 
India Company. 
The Author. 
John Lee, F.R.S. 
