INDEX 



327 



Gibbs, throus5ho1.1t thermodynamics, 161 ff 

 Glasser, source books on biophysics, 261 

 Gonads, radiation dose on, from various 



sources, 253 

 Gray, on mechanoreceptors, 56 

 Ground state, definition of, 76, 145 

 Guanine, in DNA, 149 

 Guldberg and Waage, on mass action, 194 



in alpha helix of proteins, 130-131 

 Hydrogen peroxide, formed by electromag- 

 netic radiations, 111, 241 

 by intense ultrasound, 61 

 Hydrostatics, 34-35 

 Hypermetropia, 91 



Hypothalamus, as man's temperature con- 

 troller, 301 



h — Planck's constant 



// — enthalpy, or heat content, per mole; 



Henry's constant 

 A// — change in enthalpy, per mole; heat of 



reaction per mole 

 JC — enthalpy of whole system 

 A JC — heat of reaction 

 Haldane, on scientific terminology, 6 

 Half-life, biological, 121; table of values, 259 



physical, 1 12; table of values, 115 

 Halley, first on statistics, 17 

 Hearing (See Ear) 

 Heart, pacemaker of, 273 



pumping action of, 35 

 Heat, activation, in muscle, 282 



basal metabolic, q' bm , 30, 174 



extra metabolic, q' ex , 174 



total metabolic, q\ 174 



energy from absorbed radiations, 241 



of shortening of muscle, 282 



production and loss in body, 167, 224 ff 

 Heat capacity, definition, 163 

 Heat conduction, Fourier's law, 225, 228 

 Heat content, or enthalpy, 164 

 Heat death. 188 

 Heat loss, 173-174,224-227 



irreversible, q' irr , 173 

 Heat of combustion, neutralization, reaction, 



and transition, 167 

 Heisenberg, on wave mechanics, 72 



on uncertainty principle, 298 

 Helmholtz and Young, three-pigment theory 



of color vision of, 89-90 

 Hemoglobin, structure and properties of, 



126, 129 

 Hemostatics, 34-35 

 Herrick, on ultrasonics in medicine, 65 

 Hill, about biophysics. 1. 2 



on muscle, 280 

 Hodgkin. on nerve, 263, 266, 270-271 

 Hodgkin-Huxlev theory of nerve propaga- 

 tion, 270-271 

 Hooke's law of elasticity, 34, 278 

 Hopkins, on bad molecules, 156 

 hp — horsepower, 28 

 Huxley, on muscle, 285 

 Hydrogen bond, nature and strength, 43, 47 



1 — current 



/ — current density; intensity; power; one of a 



number. 

 / — ion currents, 270 

 / or / — intensity or power at a chosen ref- 



erence point 

 / — threshold intensity 



A/, 



/, 



/ 







w * 1 

 Ichthyoccl, molecular weight of, 135, 139 



Illumination, 87 



Impact resistance, 34 



Impulse, and injury, 34 



of nerve (See Nerve impulse) 

 Index of refraction, and microscopy, 96-98 

 Indicator redox systems, 183 

 Indices, laws of, and logarithms, 20-21 

 Information, theory, and control, bio- 

 physics, 303 



and entropy, 298 



definitions and terminology, 295 ff 



storage and retrieval, 302 

 Inertia, definition of, 27 



and reflection of acoustic waves, 53 

 Infinitesimals, 12 



Infrared radiations, absorption and effects of, 

 77, 82-83 



spectra, assignments, 84 

 Insulation, thermal; skin, hair, and clothing 



as, 227 

 Insulin, structure of, 126, 128 



tracer studies with, 121 

 Integration, nature of mathematical, 16 

 Intellectual destiny of man, 31 5 

 Intensity or power, of matter waves. 55 

 Intermolecular forces, kinds, 41-42 

 Internal energy, 164 

 Inverse Square law. illustration, 52-53 

 Ionic mobility, ^ or /, 220 

 Ionic transport in electrolytes. 2 1 9 ff , 228 

 Ionization chambers, 69, 108-110 

 Ionization, degree of, in electrolytes, 220 

 Ionizing radiations, 77, 93-95 



absorption of, 81, 105-106, 242 



action, direct and indirect, 241-242 



Compton scattering of, 105 



detection. 1(14 111 



