4. Extract from the report of Fourcroy and others, showing the calculation of the extent of pollution of the Seine from the discharge of the refuse of the streets of Paris 381
5. Communication from Captain Vetch, of the Royal Engineers, on the structural arrangements of new buildings, and protection of the public health 382
6. Evidence of Mr. George Gutch, district surveyor, on shifting and building inferior tenements in the suburbs, to avoid the provisions of the Metropolis building Act 394
7. Estimate by Mr. Howell, of the cost of structural arrangements of sewerage, drainage, water-tank, and means of house cleansing for labourers’ tenements in the metropolis 394
8. Description of specification of Mr. Loudon’s agriculturists’ model cottage 395
9. Statement of the requisites of cottage architecture, by Mr. Loudon 396
10. Specification of the cost of erection, weekly rents, interest on the capital invested, and the numbers of the tenements and cottages occupied by the poor and labourers; taken from returns made by the relieving officers of their respective districts in 24 unions in the counties of Chester, Stafford, Derby, and Lancaster 400
11. Tables of the expense of building cottages and repairs, in England and Scotland 401
12. Examination of the Rev. Thomas Whateley, Cookham, Berks, on cottage allotments and the keeping of pigs by cottagers 403
13. Arrangement of public walks in towns: plan of the arboretum at Derby, laid out by Mr. Loudon 405
14. Boards of Health: report on the labours of the “Conseil de Salubrité,” of Paris, from 1829 to 1839, by M. Trebuchet 409
16. Qualifications of officers of public health: statement by M. Duchâtelet 423
17. Instance by MM. Duchâtelet and D’Arcet, of the erroneous medical inferences as to the insalubrity of particular trades 424
18. On the habitations of the lower orders of Paris 426
19. On the habitations and lodgings of the lower orders in Paris 428
20. Extract from the report of the commission appointed by the Central Board of Public Health, to ascertain the condition of the dwellings of the working classes in Brussels, and to suggest means for their improvement 429
21. Principles of sanitary police in Germany: extracts from Professor Mohl 431