Notices respecting New Books. 449, 
will no doubt be scrupulously examined; and, if found worthy, 
adopted. The expense will not then be thrown away upon a 
System comparatively worthless, and which has been submitted 
to, only for want of possessing better means: and when the system 
now recommended shall have become general, there will be 
no longer “ strange captains on any coast :” and also it should 
be considered, that as the light expense at which it can be car- 
ried into effect will allow an increase of beacons, (it is thought 
of nearly ten to one,) the security will be increased in a tenfold 
ratio, independent of the duty being so much better performed, 
LXXVI. Notices respecting New Books, 
The Second Part of the Philosophical Transactions of the Royat 
Society of London, for 1817, has just been published, and 
contains the following papers; 
XIII. Ja Sele of a thermometrical Barometer for meas 
suring Altitudes, By the Rev. Francis John Hyde Wollaston, 
B.D. F.R.S.—XIV. Observations on the Analogy which subsists 
between the Calculus of Functions and other Branches of Ana- 
lysis. By Charles Babbage, Esq. M.A. F.R.S.—XV. Of the 
Construction of Logarithmic Tables. By Thomas Knight, Esq. 
Communicated by Taylor Combe, Esq. Sec. R.S.—XVI. Two 
general Propositions in the Method of Differences, By Thomas 
Knight, Esq. Communicated by Taylor Combe, Esq. Sec. R.S. 
—XVII. Note respecting the Demonstration of the binomiak 
Theorem inserted in the last, Volume of the Philosophical Trans- 
actions. By Thomas Knight, Esq, Communicated by Taylor 
Combe, Esq. Sec. R.S.—XVIII. On the Passage of the Ovum 
from the Ovarium to the Uterus in Women. By Sir Everard 
Home, Bart. V.P.R.S.—XIX. Some further Observations on the 
Use of Colchicum autumnale in Gout. By Sir Everard Home, 
Bart. V.P.R.S.—XX. Upon theExtent of the Expansion andCon- 
traction of Timber in different Directions relative to the Position 
of the Medulla of the Tree. By Thomas Andrew Knight, Esq. 
F.R.S. In a Letter addressed to the Right Hon. Sir Joseph 
Banks, Bart. G.C.B. P.R.S.—XXI. Observations on the Tem- 
perature of the Ocean and Atmosphere, and on the Density of 
Sea-water, made during a Voyage to Ceylon. Ina Letter to 
Sir Humphry Davy, LL.D. F.R:S, By John Davy, M.D.F.R.S, 
XXII. Observations on the Genus Ocythoé of Rafinesque, with 
a Description of a new Species. By William Elford Leach, 
* M.D. F.R.S.—XXIII, The distinguishing Characters between 
the Ova of the Sepia, and those of the Vermes testacea, that live 
in Water, explained, By Sir Everard Home, Bart. V.P.R.S.— 
XXIV. Astronomical Observations and Experiments tending to 
investigate the local Arrangement of the celestial Bodies in Space, 
Vol. 50, No.236, Deg. 1817. PE and 
