Accum’s Process of manufacturing Coal-Gas. 453 
pon made use of is a spear, and the figures are particularly slen- 
der and black. They appeared to me to represent persons si- 
inilar to the Arabs I saw at Mocha, or the slight forms of the 
inhabitants of the southern parts of India. They did not strike 
me as having the features of the negro.” 
Speaking of the colossal head, now in Mr. Salt’s possession, 
which was brought from the neighbourhood of ‘Thebes, and is 
called the head of Orus, the author says: “ It is ten feet from 
the top of the mitre to the chin, having a band round the bottom 
part of it not unlike a turban. It is of red granite, and in very 
fine preservation. There isan arm eighteen feet long of the same 
statue, with the fist clenched, of excellent proportions. Belzoni 
thinks he could ‘convey the whole of the figure to England piece- 
meal, and that it might be placed in any public situation, as one 
of ‘the greatest and most’complete remains of antiquity ever car- 
ried out of Egypt. The célébrated French stone has also been 
relnoved to this place [Cairo]. It consists of a block of granite 
about four feet square, and has evidently been an altar. On the 
sides are figures with draperies supporting the summit. I hope 
‘eventually to see the whole of these in the British Museum ;”— 
and so must every one who can duly appretiate such valuable 
‘antiquities. 
We have not only been amused but instructed by the work 
before us, which cannot fail to be highly ‘acceptable to the his- 
torian, the military man, and the antiquarian. 
Description of the Process of manufacturing Coal-Gas for the 
Lighting of Streets, Houses, and public Buildings; with Eleva- 
tions, Sections and Plans of the most impr oved Sorts of Ap- 
paratus now employed at the Gas-Works in London, and the 
provincial Towns of Great Britain; accompanied with com- 
parative Estimates exhibiting the most ceconomical Mode of 
procuring this Species of Light. With seven Plates. By FRE- 
prick Accum, Operative Chemist, Lecturer‘on Practical Che- 
mistry, &c. pp. 330. 
Ir will be remembered that when the art of lighting by gas was 
‘yet in its infaricy, Mr. Accum published a Treatise, containing a 
description of the various processes of the art as far as then’ un- 
derstood and practised in the metropolis. Such was the general 
avidity for information on the subject, that in the course of a few 
years four large impressions of the work were disposed of, and 
it was successively transferred into the French, German and Italian 
languages. Since Mr. Accum wrote that Treatise, however, the 
art of manufacturing and applying coal gas has undergone many 
material improvements, all combining to bring it to a degree of 
simplicity, precision, and ceconomy, far surpassing every thing 
Ff3 which 
