92 Zoological Nomenclature. 
under the influence of this process the extremely dense and 
rich gas which the ordinary process returns from this coal is 
broken up into a much larger volume of gas of a less density 
and lower illuminating power. Wollongongite has therefore 
the power to raise the illuminating intensity of gas from common 
caking coals when treated by the hydro-carbon process, even 
when so small a quantity as five per cent is employed, much 
above the average of illuminating gas in common use; whil 
at the same time the volume of the gas produced exceeds 
16,400 oahic feet per ton against about 10, 000 cubic feet by 
the common process, of a much lower illuminating power. 
* 
. 
Art. XI.—The Rules of Zoological Nomenclature. From the 
Report of a Committee “ appointed to report on the changes 
which they may consider desirable to make, if any, in the 
Rules of Zoloogical Nomenclature, drawn up by Mr, H. & 
STRICKLAND, at the instance of the British Association, at 
ven meeting in Manchester in 1842.” With note s by A. 
EK. VER 
Tuar the value and utility of the binomial system of no- 
menclature, established by Linné and at once adopted b 
nearly all scientific zodlogists and botanists, depends directly 
upon the uniformity and universality of the rules regulating 
its oo sapped 18 a evident as to require no demonstration ; 
yet ve amie ters, both in this country and abroad, con- 
by Latiee, but later codes of laws regulating this matter are 
based upon and, in all the principal points, are essentially 
ss eis with those originally proposed. 
secure greater uniformity and bring about certain reforms 
in this matter, the British Association in 1842 appointed a 
committee, consisting of Mr. C. Darwin, Professor Henslow, Rev. 
L, Jenyns, Mr. W. Ogilby, Mr. J. Phillips, Dr. Richardson, 
* An excellent exposition of the Linngan canons, as elaborated 
sophia Botanica, has been given by Prof. Agassiz in the preface to his = Nomeitlater 
Zoologicus, 1846, together with a review of those of the ociation. 
also A. ( Gray’s review of the work, this Journal, 2d Series, vol. iii, p. 302, 
