Public works . construction ma-chines. A graphic record of progress was kept. On dia-gram plans the areas backfilled and leveled were in-dicated by dotted outlines, excavated areas by solidoutlines, forms started by rectangles with onediagonal, forms completed by rectangles with twodiagonals, concreted mats by single hatched areas,and completed concrete footings, walls and floors bysolid black areas. These diagrams were posted dailyand enabled the condition and progress of any por-tion of the work to be instantly determined by in-spection. Typhoid Attributed to Fish andShell Fish Dr. W. H. Ham
Public works . construction ma-chines. A graphic record of progress was kept. On dia-gram plans the areas backfilled and leveled were in-dicated by dotted outlines, excavated areas by solidoutlines, forms started by rectangles with onediagonal, forms completed by rectangles with twodiagonals, concreted mats by single hatched areas,and completed concrete footings, walls and floors bysolid black areas. These diagrams were posted dailyand enabled the condition and progress of any por-tion of the work to be instantly determined by in-spection. Typhoid Attributed to Fish andShell Fish Dr. W. H. Hamer, medical officer of health toLondon county, England, is the author of twoarticles which have recently appeared, one in theannual report of the London county council andthe other in Public Health for December 1921,in, both of which he discusses at some length thetyphoid fever statistics for London. In the re-port he states that he does not believe present avail-able data in both England and the United States. UNLOADING CRUSHED STONE TO STORAGE PILE STORAGE FOR AGGREGATES AND CEMENT HOUSE 162 PUBLIC WORKS Vol. 52. No, 9 warrant the belief that preventive inoculation hascaused a lower incidence upon young men duringthe war, and further that London experience for25 years past furnishes no clear evidence of thespread of t}T)hoid due to direct case-to-case infec-tion. From a review of the London outbreaks,which he discusses at some length and especiallythe epidemiologic data, he inclines to the belief thatfish and shell hsh have been responsible for thetrreater part of the typhoid outbreaks in Londonduring the past 25 years and that the continued andaccelerated fall of typhoid in London is to be at-tributed mainly to the improved conditions sur-rounding the supplies of fish and shell fish fur-nished to that city. Competitive Plans for MovingPlatform Transportation The City of Paris is inviting inventors to sub-mit plans for a mechanical system of continuouslyoperating conveyance f
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
