GENERAL INDEX 
857 
Page 
Hildebrand, Samuel F. and Louella E. Cable — Con. 
Weakfishes or sea trouts (Cynoscion nebulosus, C. 
regalis, and C. nolhus) 91 
Key to the species 91 
C ynoseion nebulosis _ 92 
Spawning 93 
Descriptions of the young 94 
Distribution of the young 101 
Growth 102 
Cynoscion regalis. 102 
Spawning... 103 
Descriptions of the eggs and young 104 
Distribution of the young 107 
Growth 108 
Cynoscion nothus. 110 
Spawning.. 111 
Descriptions of the young 112 
Distribution of the young 115 
Growth 116 
Hile, Ralph: Age and growth of the cisco, Leucuchthys artedi, 
in the lakes of the northeastern highlands of Wisconsin. 211-317 
Materials 214 
Methods 215 
Gear used in collecting 215 
Methods of fishing 215 
Field data recorded for individual specimens 216 
Treatment of preserved specimens and resulting 
shrinkage 217 
Preparation and examination of scale material 217 
Miscellaneous considerations 218 
The scale method.. 218 
Assessment of age and calculation of growth 218 
Lee’s phenomenon in the Silver Lake cisco 222 
Possible causes of Lee’s phenomenon in the Silver 
Lake cisco. 224 
General growth curves for the Trout Lake, Muskel- 
lunge Lake, Silver Lake and Clear Lake cisco pop- 
ulations 226 
Growth in length 226 
Growth in weight 230 
Comparison of the growth of the Trout Lake, Muskel- 
lunge Lake, Silver Lake and Clear Lake cisco popu- 
lations with that of cisco populations in other regions. 232 
Range of length in individual age groups; maximum 
length and weight 234 
Condition and the relationship between length and 
weight. 237 
Length of growing season 249 
Relationship between density of population and rate 
of growth 253 
Age composition of the samples and the relative abun- 
dance of year classes. 263 
Age at maturity and sex ratio 267 
Annual increments of growth 271 
Variation in the amount of growth in different 
calendar years 271 
Bimodality in the calculated growth for the first 
year of life. 280 
Growth compensation 282 
Growth relationships in the Trout Lake, Muskellunge 
Lake, Silver Lake and Clear Lake cisco populations. 286 
Physical-chemical factors 287 
Density of population 288 
Length of the growing season 288 
Parasitization 289 
Condition 289 
Sex ratio 292 
Fishes associated with the cisco 293 
Selective action of gill nets 294 
Hippoglossoides platessoides 340 
Histrio histrio. 341 
Page 
Hopkins, A. E.: Experimental observations on spawning, 
larval development and setting in the Olympia oyster, 
Ostrea lurida 439-503 
Method of cultivation 441 
Enemies of the oyster 441 
Aims of investigation 443 
Hydrographical observations 443 
General description of region 443 
Temperature 444 
Salinity and pH 448 
Spawning 456 
Size of broods 458 
Relation of temperature to spawning 460 
Spawning season 464 
Development of larvae 467 
Setting 471 
Effect of angle of surface. 472 
Method of determining frequency of setting 475 
Setting seasons, Oyster Bay 477 
Setting seasons, Mud Bay 483 
Periodicity of setting 487 
Stages of tide and setting 489 
Depth of setting 493 
Correlation between spawning and setting 495 
Hopkins, A. E.: Adaptation of the feeding mechanism of 
the oyster, Ostrea gigas, to changes in salinity 345-364 
Homing instinct and age at maturity of the pink salmon, 
Oncorhynchus gorbuscha 27-39 
Hutchinson, Samuel J. and Frederick A. Davidson: The 
geographic distribution and environmental limitations 
of the Pacific salmon (genus Oncorhynchus) 667-692 
humpback salmon 667, 695, 804-812, 820 
Isurus nasus 322 
tigris 322 
Kelez, George B. and George A. Rounsefell: The salmon 
and salmon fisheries of Swiftsure Bank, Puget Sound 
and the Fraser River 693-823 
kingfishes, or whitings 61 
king salmon 695, 795-803, 819 
Koehring, Vera, Paul S. Galtsoff, Herbert F. Prytherch, 
and Robert O. Smith: Effects of crude oil pollution on 
oysters in Louisiana waters 143-210 
kroyeri, Xiphopenaeus 2,8,13,21 
lake shrimp 1 
Lamprisregius 332 
lamprey, sea.. 321 
lancetfish 328 
Larimus fasciatus 84 
leatherjacket 332 
Leptoclinus maculatus 337 
Leucichthys artedi, cisco, age and growth of in the lakes of 
the northeastern highlands of Wisconsin 211-317 
Limanda ferruginea 340 
Lindner, Milton J., W. W. Anderson and F. W. Wey- 
mouth: Preliminary report on the life history of the 
common shrimp, Penaeus setiferus 1-26 
Liparis liparis 336 
lookdown 332 
Lophius americanus 341 
Louisiana waters, effects of crude oil pollution on oysters 
in.. 143-210 
Lumpenus lampetraeformis 336 
Lycenchelys verrillii 338 
mackerel 329 
Spanish 508 
Macrobrachium sp 1 
Macrourus bairdii 340 
Makaira albida 330 
