Annual report of the Boston Water Board, for the year ending .. . on. At the request of iMr. Desmond FitzGerald, of the BostonWaterworks, I undertook a study of the water from thedeeper layers of these sources with reference to their highercolor. The following tables fiom the reports of the biologicalwork referred to above, show the gradual increase of c(dorat the bottom of the three sources to which I confined mywork: I*ake Cochituate. — Depth, 60-65 feet. 1890. SURPJiCE. Mid-Depth. Temp. Color. Temp. Color. August 5 ° F. .10 » F. .20 11 .10 .20 19 ........ .15 .30
Annual report of the Boston Water Board, for the year ending .. . on. At the request of iMr. Desmond FitzGerald, of the BostonWaterworks, I undertook a study of the water from thedeeper layers of these sources with reference to their highercolor. The following tables fiom the reports of the biologicalwork referred to above, show the gradual increase of c(dorat the bottom of the three sources to which I confined mywork: I*ake Cochituate. — Depth, 60-65 feet. 1890. SURPJiCE. Mid-Depth. Temp. Color. Temp. Color. August 5 ° F. .10 » F. .20 11 .10 .20 19 ........ .15 .30 26 .15 .30 September 3 .10 .30 9 .10 .30 1 15 J63 amorplioiis mat.,no creuollirix. 145 .imorplious mat.,uo crenothrix. 1 20 105 amorpDO creuc lous mat.,thrix. 164 amorpno crenc lions mat.,thrix. Bottom. Temp. Color. F. .80 753 amorpmuch cr 10US mat.,unothrix. 940 amorpsome cri ions mat.,uothrix. WaTER-SuPPLY DEPAPtTMENT. 97 Basin 3, Fiaraingliain. — Depth, about 20 1 A heavy wind during this interval mixed the water from all depths, causing a uniformcolor. Basin 4, Asliland. — Depth, 30-35 feet.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectwatersupply, bookyear
