Bacteriology of manufacturing sewages and of the effluents from filters Nos. 71 451 Increase in number of bacteria in sewages which have been allowed to stand for 455 Wool-scouring liquors 456 Removal of sludge from sewage Micro-organisms found in river water receiving tannery sewage Forced filtration with aeration Filtration through gravel with a current of air forced up through the gravel 457 459 459 466 466 467 468 471 473 475 476 477 Average purification of Lawrence sewage by the several filters in 1896 484 Experiments upon the rapid filtration of sewage from which the sludge has been removed by different methods. 486 Filter No. 1, experiments upon purification of sewage by coarse sand Filter No. 2, experiments upon purification of sewage by fine sand Filter No. 4, experiments upon purification of sewage by very fine sand with trenches filled with coarse sand 487 Average purification 485 Filter No. 5 A, experiments upon purification of sewage by fine gravel Filter No. 6, experiments upon purification of sewage by mixed coarse and fine 490 Filter No. 9 A, experiments upon purification of sewage by medium fine sand Filter No. 10, experiments upon purification of sewage by mixed coarse and fine 491 Average purification 485 Sewage Concluded. Filters Nos. 12 A, 15 B, 16 B, experiments upon the purification of sewage by filtra- Average purification (filters Nos. 15 B and 16 B) Filter No. 13 A, experiments upon the purification of sewage from which sludge Analyses of sewage applied to filter Filter No. 14 A, experiments upon the purification of sewage by medium fine sand . Filter No. 19, experiments upon purification of sewage, from which sludge has Filter No. 21 A, experiments upon purification of sewage by fine sifted gravel, aided Average purification Filter No. 22 A, experiments upon purification of sewage by fine coke breeze Filter No. 65, experiments upon the purification of sewage by coke breeze Average purification Filter No. 67, experiments upon the purification of sewage by sand At Brockton At Framingham At Gardner . At Leicester At Marlborough At Medfield. At Natick Sewerage and sewage disposal, action of the Board in reply to applications for advice Sheffield, advice of Board in relation to a proposed water supply Examination of water from springs and reservoir with reference to proposed Sherborn, examination of water from Farm Pond. Sherman Spring Reservoir, Williamstown, examination of water of Silver Lake, Pembroke, examination of water of Small-pox, prevalence of . Smith, Theobald, M.D., and E. L. Walker, a comparative study of the toxin produc- tion of diphtheria bacilli, by Comparative study of forty-two cultures of diphtheria bacilli and of four cultures Smith's Spring, Sheffield, examination of water of. PAGE Somerville, consumption of water in (see Boston, Mystic Works) Health of Water supply of (see Boston, Mystic Works) South Watuppa Pond, Fall River and Westport, examination of water of 411 888 307 111 307 148 511 Summary of the weekly mortality reports from cities and towns 83 834 838 Reported cases of infectious diseases in Massachusetts for 1896, diphtheria and 841 Reported cases of infectious diseases in Massachusetts, 1891-96, diphtheria and 841 Fatality from diphtheria, scarlet-fever and typhoid fever in England for 1890-95 Cases of infectious diseases reported to this Board from one hundred and forty- 846 List of towns from which no reports were received 849 Returns of deaths from cities and towns having a population of more than 5,000 Stillwater River at Sterling, examination of water of Stockbridge, water supply of, examination of. Sewage disposal of, advice of Board relative to proposed system of Stoneham, consumption of water in (see Wakefield) Water supply of (see Wakefield) Spot Pond, examination of water of. Stony Brook, Boston, examination of water of Stony Brook, Southborough, examination of water of (Boston Water Works) 862-865 866 xxviii 140 402 402 327 62 412 329 220 222 405 111 133 136 412 421 420 421 Swampscott (Marblehead Water Company), water supply of, advice of Board Swampscott and Nahant, consumption of water in PAGE 422 423 107 635 409 834 xix, 6 40 412 Tatnuck Brook storage reservoir (Holden supply), Worcester, examination of water of Town Brook, Quincy, examination of water of Tubb's Meadow Brook, Pembroke, examination of water of Tuberculosis, examinations of sputum and other material suspected of containing the Turner's Falls Fire District, Montague, water supply of, examination of 632 428 382 XV 761, 763, 767, 768-771, 779 841, 842 836 Leicester 128 155 196 233 254 356 89 42 339 392, 393, 396 Medford Newton Upper Sandra Reservoir, Westborough, examination of water of Examination of Examination of Blackstone River at. Van Choate Electric Company, Foxborough, advice of Board relative to sewage dis- Vine Brook storage reservoir, Lexington, examination of water of 67 323 201 201 |