Methods for close automatic control of incubating temperatures in laboratories . cubating room, Biochemic Division,April 7 to 14, 1919. The system of control used is not so sensitive as that used iathe Pathological Division. flow of gas. These incubators occupied a large floor space, the con-trol of temperatures was poor, and the fire hazard was great. Withthe present installation of incubating rooms the capacity has beenabout doubled and the space occupied has been reduced about one-half. Furthermore, the cultures have grown better than ever before,a result mainly of the very uniform temperat
Methods for close automatic control of incubating temperatures in laboratories . cubating room, Biochemic Division,April 7 to 14, 1919. The system of control used is not so sensitive as that used iathe Pathological Division. flow of gas. These incubators occupied a large floor space, the con-trol of temperatures was poor, and the fire hazard was great. Withthe present installation of incubating rooms the capacity has beenabout doubled and the space occupied has been reduced about one-half. Furthermore, the cultures have grown better than ever before,a result mainly of the very uniform temperature which has beenmaintained in the incubating rooms. o. Washington, D. C. PROFESSIONAL PAPEK lune 4,1921 METHODS FOR CLOSE AUTOMATIC CONTROL OFINCUBATING TEMPERATURES INLABORATORIES. By John T. Bowen, Technologist, Dairy Division. CONTENTS. Page. Construction of temperature-control compartment 2 Construction of room 2 Heating equipment 5 Page. Description of temperature-control systems 7 Temperature recorders 11 Cost of operation I6 The automatic control of temperature within close limits is veryimportant in many lines of commercial work. It is of special im-portance, in fact, is a necessity, in laboratories where chemical, bac-teriological, and physiological investigations are conducted. Inmany instances success in the maintenance of cultures depends uponth?. ability continuously to maintain practically constant microorganisms, as , do not grow except Avithin verynarrow temperature limits, the optimum temperature being ° C. (° F.). The Bureau of Animal Industry, United States Department ofAgricu
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