From the reports transmitted to us by our Assistant Commissioners we subjoin a report from Mr. Gilbert on the sanitary condition of the labouring population in Devon and Cornwall: the reports from Mr. Mott and Mr. Power with relation to the sanitary condition of the population of Manchester and the adjacent manufacturing districts, which will be found to be corroborative of the reports of Dr. Baron Howard and Dr. Duncan: one from Mr. Twisleton with relation to the sanitary condition of the population of Norfolk and Suffolk: one from Mr. Tufnell with relation to the sanitary condition of the labouring population of Kent and Sussex: a report from Mr. Parker on the sanitary state of the labouring population in the counties of Berks, Bucks, and Oxford: one from Mr. Weale on cottage accommodation in the counties of Bedford, Northampton, and Stafford,—a report from Mr. Senior on the sanitary condition of the labouring population in the counties of Leicester, Lincoln, Nottingham, and Rutland: one from Sir Edmund Head on the dwellings of the labouring classes, and on the means of procuring better cottage accommodation in the counties of Gloucester, Hereford, Monmouth, Salop, Worcester, Brecknock, and Radnor; three reports from Sir John Walsham on the condition of the dwellings of the labouring population in Durham, Northumberland, Westmoreland, and Cumberland; and a communication from Mr. Day on the cost of erection, repairs, and rents of labourers’ cottages in Salop, Cheshire, and North Wales. We have likewise received several valuable reports upon towns and districts in England from medical men resident upon the spot. We have obtained a report from Mr. Hodgson and a committee of medical gentlemen of Birmingham on the sanitary condition of the labouring population in that town. We also append a report on the sanitary condition of the dwellings of the labouring classes, &c., in Manchester, which we have obtained from Dr. Baron Howard, physician to the Ardwick and Ancoats Dispensary of that town: Also, one on the condition of the labouring population in Liverpool, from Dr. Duncan. One on the condition of the labouring population in Derby, from Dr. Baker. One on the condition of the labouring population of Truro, from Dr. Barham. One on the condition of the labouring population of Brighton, from Dr. Jenks. One on the sanitary condition of the labouring population in the town of Wolverhampton, by Dr. Dehane. One on the prevalence of fever in the parish of Breadsall, Derbyshire, by Dr. Kennedy and Mr. Senior. One on the sanitary state of the town of Stafford, by Dr. Edward Knight. One on an improved description of cottage tenements for the labouring classes, by Mr. Edmund Ashworth. One on the sanitary condition of the town of Lancaster, Dr. de Vitrié. One on the sanitary condition of the town of Leeds, by Mr. Robert Baker.