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Donors. 
Presents. 
Authors : etched for the use of Students, by Maria Emma Gray. Vol, I., 
with Explanations. 8vo. London 18 42. 
GRIFFITH (W. P.) Geometrical Proportion of Architecture. Grecian 
Architecture. Suggestions for the developing the Temples of Greece, by 
Geometrical Proportion ; forming a sequel to all their harmony and beauty, 
folio. London 1843. 
HALLIWELL (Jas. O.) The First Sketches of the Second and Third Parts 
of King Henry the Sixth : edited by James Orchard Halliwell, Esq., F.R.S., 
&c. 8vo. London 1843. 
The Foundation Documents of Merton College, Ox- 
ford ; collected by James Heywood, F.R.S. : edited by James Orchard 
Halliwell, Esq., F.R.S. 8vo. London 1843. 
HANSEN (M.) Explanation of a mode of computing the Absolute Perturba- 
tions of the Heavenly Bodies which move in orbits of Elliptical Eccen- 
tricity. 
HANSTEEN (C.) Of the Changes which the Magnetic Rod undergoes, 
arising both from the variation of Time and Temperature. 4to. Christi- 
ania 1842. 
A Periodical Variation of the Horizontal Magnetic Inten- 
sity dependent upon the length of the ascending Moon’s Nodes. 8vo. 
1839. 
HARE (Robert.) A Letter to Professor Whewell, in reply to certain allega- 
tions and arguments advanced in a pamphlet entitled, A Demonstration that 
all Matter is heavy. 8vo. Philadelphia. 
An Effort to refute the Arguments advanced in favour of 
the Existence in the Amphido Salts, or Radicals, consisting, like Cyanogen, 
of more than one Element. 8vo. Philadelphia 1842. 
Strictures on Professor Dove’s Essay ‘ On the Law of 
Storms.’ 8vo. Philadelphia. 
Objections to Mr. Redfield’s Theory of Storms, with some 
strictures upon his reasoning. 8vo. Philadelphia. 
Additional Objections to Redfield’s Theory of Storms. 8vo. 
Philadelphia. 
HARRIS (W. Snow.) On the Nature of Thunder Storms; and on the means 
of protecting Buildings and Shipping against the destructive effects of 
Lightning. 8vo. London 1843. 
HASSLER (F. R.) Report upon the Standards of the Liquid Capacity Mea- 
sures of the system of uniform standards for the United States ; with a 
description of a new original Barometer, and of the balance for adjusting 
the half bushels by their weight of distilled water. 8vo. Washington 1842. 
HEMSO (J. G. de.) Observations Authentiques sur laPeste du Levant et sur 
la vertu specifique de l’huile d’olive contre cette effrayante maladie redigees 
pour la seconde reunion scientifique Italienne seant a Turin en Septembre 
1840. 8 vo. Florence 1841. 
Notice sur la Race de Dromadaires existant dans le Do- 
maine de San Rossore, pres de Pise en Toscane. 8vo. Paris 1840. 
The recent Progress of Geography. 8vo. Milan 1841. 
HERSCHEL (Sir J. F. W.) On the Action of the Rays of the Solar Spectrum 
on the Daguerreotype Plate. 8vo. London 1 843. 
b 2 
The Author. 
The Editor. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author, 
The Author. 
