20 OCTOBER 1849, Page 7

Dr. Reid has sent us a reply to Mr. William

Hempath; but we cannot spare room for controversies on the technicalities of medicine or chemistry. Dr. Reid says that Mr. Herapath's application of his principle is not re- corded in the Medical Times, the Lancet, the Medical Gazette, the Medico- Chireirgkal Review, or Forbes's Journal. Our correspondent also explains that he did not profess to destroy the cholera miasna by chlorine, but only its " nidus "—" the positive putrid miasmata to which the cholera poison is so peculiarly disposed to attach itself."