8 SEPTEMBER 1877, Page 14

GUINEA-WORMS IN WATER.

[TO THE EDITOR OF THE " SPECTATOR:]

Stn,—Noticing the letter of your correspondent Joseph John Murphy in your issue of September 1, we beg to inform you that we have lately sent a large consignment of "silicated carbon" filters to Madras.

Professor Wanklyn, in his experiments in filtration referred to in the Times of Monday, used a filter of this manufacture, and expressed a decided opinion that it was impossible for any germs to'pass through the filtering-medium.—We are, Sir, &e.,

THE SILICATE]) CARBON FILTER COMPANY.