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i STSORLOGIYA I OISROLOGIYA i;o7 n, i:ov 1967

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E.Kh. Gol'd ber g. The Determlnatlon of Low Concentratlon* of Carbon Dioxrde in the Air by Meant of an FEK-N-S4 Photo* electrocolorimeter......................... 108

l.A. Netyl'kin. The Automatic Doaing of Chlofine Solutlon foc

the Purifleatlon of Sewage..................... 110

V.I. Petrov. A Sanitary Aaseaamentof the Method of Planned Garbage

Removal Direct from Flati..................... 112

COMMUNICATIONS IN BR1EF

V.L. Mataiov, V.Ya. Antysheva. and E.P. Doikioa . The Effect of Damming of the Volga on the Quality of the

Water in the Volgograd Area..................... 117

V.V. Tłapko. G.l. Panasenko, G.P. Chernina, and R.K. Vyrvich. A Sanitary Auenment of Some New Materials Used in the Construction of Waterworks......... 120

Z.M. Evenshtein. The Oligodynamic Effect of Aluminium

in Water.............................. 123

E.M. Shtarkas. l.P. Slavina. L.V. Rozentalene, and R.S. Karmazinene. The Effect of Synthetic Detergent* on the Depth of Penetration of Bactcria During the Filtration

of Water Through the Soil..................... 126

N.F. Bon lenko. ProblemtofOccupational Hygiene in Relation

to Seed Treatment......................... 129

M. P. Kirpichev. A. Shondoli. and L.G. Popova. The

Optimum Color and Contrast for the Walla, Blackboard and

Chalk in Claurooms........................ 131

N. P. Prokop’ ev. Skin Temperaturo in Children aa a Functlon of

Relative Humidity Undcr Comfortable Temperaturę Conditiona . .    134

CONGRZSSES • MEET1NGS CONFERENCES •SCLENTIFIC SOC1IT1IS

Yu.M. Borahche vakii and A.D. Froloea. Cooiereoca of Graduare

Studenta and junior Sciantific Anociatea.............. 137

(Contd)

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