Note 13 — PART IV.

The only gas-light establishment of great extent in the metropolis, at which parallelopipedal retorts are still in use, is the South London Gas Works. But it is solely owing to the very peculiar care and economy with which all the details of this establishment are conducted, under the immediate superintendence of a few active, skilful and scientific proprietors, that they are able to compensate for the loss, which in all ordinary cases is inseparable from the employment of vessels of that description.