The Carnegie Institution of Washington . The Nutrition Laboratory, Boston. The investigations in nutrition, to which this laboratory isdevoted, originated with the late Professor W. 0. Atwater, of Wes-leyan University, Middletown, Connecticut. During the years 1903to 1907 grants were made to him and to Professor Benedict to aid inbuilding a respiration calorimeter and to carry on experiments with 23 24 NUTRITION LABORATORY. this apparatus. The erection of a laboratory at Boston, Massachu-setts, especially designed for this purpose, was authorized in December1906, and early in 1907 Professor Be


The Carnegie Institution of Washington . The Nutrition Laboratory, Boston. The investigations in nutrition, to which this laboratory isdevoted, originated with the late Professor W. 0. Atwater, of Wes-leyan University, Middletown, Connecticut. During the years 1903to 1907 grants were made to him and to Professor Benedict to aid inbuilding a respiration calorimeter and to carry on experiments with 23 24 NUTRITION LABORATORY. this apparatus. The erection of a laboratory at Boston, Massachu-setts, especially designed for this purpose, was authorized in December1906, and early in 1907 Professor Benedict was appointed construction of the laboratory was begun in July 1907 and com-pleted in February 1908. The equipment consists of a variety of apparatus for observationson metabolism and related investigations. It includes four respira-tion calorimeters, one of which is especially designed for studying. Psycho-Physical Laboratory. the influence of muscular work; a number of forms of respirationapparatus of the unit type developed in this laboratory, together withother types of apparatus used by leading investigators for studyingrespiratory exchange; several respiration chambers for study of patho-;logical cases, infants, small animals, and groups of individuals orlarge animals; supplementary apparatus for recording muscularactivity, respiration, and pulse-rate; two bicycle ergometers, and twotreadmills for studying muscular work; various types of apparatus NUTRITION LABORATORY. ^5 for photographic registration of pulse rate, respiration, electricalaction of the heart, and other delicate physiological activities; anadiabatic bomb calorimeter; and a complete equipment for chemicalanalysis of foods and urine. A psychological laboratory has beenfitted up for observations in physiological psychology, particularlywith regard to the influence of various foods and drugs. Much of thescientifi


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