INDEX 



243 



Thermistor, 39 



Thermobarometer, in manometer, 134, 



140, 192, 193 

 Thermocouple, 39 

 Thermometer, 38 



Thermoregulator, in manometer, 133 

 Time, measurement of, 37 

 Title, of manuscript, 230 

 Torsion balance, 36 

 Tracers. See Isotopic tracers 

 Transducers, 179-184 



input, 179-182 



mechanical, 179-181 



output, 182-184 



radiation, 181 



temperature, 181 

 Transistors, 177-178, 186 

 Tri ode amphfier tube, 176, 177 

 Trip scale, 36 

 Tubes, 167-169, 176-178, 183-184 



Geiger-Miiller, 167-168, 169 



triode amplifier, 176, 177 



vacuum, 176-178, 183-184, 185 

 Tungsten filament lamp, 115, 117 

 Typing, manuscript, 229-230 



Vacuum tubes, 176-178, 183-184, 185 



van Helmont, Jan B., 13 



Variance, analysis of, 207-208, 219- 



221 

 Vitahsts, 13-14 

 Volumetric glassware, 42-46, 50 



w 



Warburg, Otto, 62, 132 



Warburg manometer flask, 190 



Water bath system, in manometer, 133- 



134, 135, 140 

 Wave number, 88 



Whatman No. 1 filter paper, 156, 157 

 Wheatstone bridge, 32, 33, 39, 114, 



180-181 

 White, P. R., 72 

 Willstatter, Richard, 62-63 

 Writing, manuscript, 225-227 



u 



Ultracentrifuges, 75, 81, 82 

 Ultraviolet spectrophotometers, 1 1 9- 



120 

 Umbreit, W. W., 136-138, 192 

 Units, of measurement, 33, 34—35 

 University of Cambridge, 113 

 University of Utah, 66, 75 



Yard, international, defined, 34 

 Yellow Springs Instrument Company, 

 39 



"Zoom" microscope, 93-94 



