INDEX 



219 



Humidity at the time of spawning, 



effects, 131, 210 

 Hydrotaxis, iio-ii 

 Hyla— 



andersonii, 174 



arborea, 68 



tiigropes, 138 



rosenbcrgii, 22 

 Hypopachus aguae, 51, 53 

 Hypothesis and fact, 70 



Industrial areas, late spawning in, 



125-6 

 Ireland, early spawning in, 125 

 Isophene map, 124 



James, 138 



Jameson, 84 



Jelly envelopes, formation of, 12-14 



Joint functional regressions, 189 



diagrams, 133, 135, 138, 140, 141 

 Joyeux, 58 

 Jusczyk, 85, III 

 Juveniles — 



dispersal, 68 



diurnal behaviour, 68 



Kaloula borealis, 46 



Kammerer, 167 



Kendall, 184 



Kratochwill, 51 



Krizenecky and Podradsky, 22 



Krogh, 22 



Lack, 58, 79-80, 85 



Lantz, 68 



Leeches as predators, 65-6 



Li and Lin, 46 



Light, influence on spawning, 139 



Limnodynastes tasmaniensis, foam nests, 



15 

 Literature, use of, 198 

 Liu, 164 



Locust plagues, 180-1 

 Loeb, 154 

 London clay, not favoured by frogs, 



75 

 Lungs of tadpoles, 46, 48, 54, 55 

 Lynn and Edelmann, 42 



Macan and Worthington, 47 

 Macfarlane, 10 



Maillcs, 97 



Man as a predator, 82, 88-9 



Map — 



distribution, 2 



isophene, 124 



migration, loi 

 Martof, 68, 85, iii 



Mathematical equations v. graphs, 192 

 Maturity, age of, 68 

 Mcdvcdcv, 54 

 Microhyla heymonsii^ 53 

 Migration — 



and air currents, 103, no, 114-5 



compared with wind rose, 106 



description of, 100, 102 



map, loi 



and smell, 1 12-13 



in snow, 108 



stimulus for begimiing, 11 5-16 



theories, 1 10-15 



and voice, 111-12 



and weather data, 104 



and weather relations, 103-10 



wind direction and, 105-6, no 

 Moore, H., 114 

 Moore, J. A., 2, 5 

 Moorhens eating jelly, 16, 39, 87 

 Moran, 181 



Mortality of frogs and tadpoles, 85 

 Mucous cord feeding in tadpoles, 51 

 Mud, as food for tadpoles, 46 



Matrix natrix, as a predator, 88 



Neal, 99 



Nicholson, 90 



Nitrogen content of embryos, 16, 18 



Noble, 19, 22, III 



Noble and Aronson, 173 



Noble and Farris, 164, 173 



Nuptial pads, function of, 166-7 



Nussbaum, 8, 13 



Nyctothews, 58 



Observations — 



importance of trivial, 201 



publications, 200 

 Occam's razor, 153, 175 

 Opalina, 58 



Oviposition, 8, 11, 168-70 

 Oxygen, dissolved, effects on tadpoles, 

 19, 20 



