GENERAL INDEX, 
487 
Naias 
natalis, Ameiurus.. . 
Nauplii ... 
Navicula 
amphigomphus. 
confer vacea 
major 
radiosa 
Page 
31,35 
2 
400, 401, 404, 405, 456 
460 
408 
399 
402 
408 
reinhardtii 
seutelloides .. 
(Stauroneis) phoenicenteron . _ 
nebulosus, Ameiurus 
Cynoscion- — 
Enochrus.: 
Hydrobius. 
Philydrus 
nebulosus marmoratus, Ameiurus, 
Newman, Lake, Wash.: 
description 
408 
408 
402 
2,253,254 
164-169 
263,313,317,318,319,320 
318 
318 
253 
89 
fish - 72 
plankton 89,129 
thermal changes and gas conditions of 70, 118 
niagarae, Stephanodiscus. 399,401,402,404,405,408,410 
niger, Hydroporus 263,285,286,300 
nigra surinamensis, Hydroehelidon 34 
nigricans, Catostomus 253 
Hypentelium 2 
nimbatus, Tropisternus 238,321 
Nitzchia palia 408 
Norfolk spot 177 
Northwestern lakes of the United States: Biological and 
chemical studies with reference to possibilities in pro- 
duction of fish... 51-140 
anchor release 54 
fish food of 74 
Bear Lake, Idaho 74 
Crater Lake, Oreg... 75 
Green Lake, Wash.. 67, 75, 100 
Henry Lake, Idaho 67,74,88 
Lake Mendota, Wis 66, 7e 
Upper Klamath Lake, Oreg 67,75, 112 
fish in small lakes in Washington and Idaho. 72 
mackinaw trout 73 
lakes in California and Oregon 105 
in eastern Washington and Idaho 77 
inwesternWashington 96 
maps of 53 
net plankton 65 
method of obtaining and enumerating 65 
physical conditions in lakes 65 
samples of water 56, 59 
soundings 53,54 
temperature observations.. 54-56 
notatus, Fundulus 253 
N otemigonus erysoleucas 3 
notes on a new mantle condition exhibited by Lampsilis 
luteola 203-219 
Noteus 409 
militaris 400, 40j 
nothus, Cynoscion 169,170 
Notops 409 
brachionus.. 410 
braehionus spinosus 400 
clavulatus 405 
Notropis atherinoides 253 
’ cornutus 253 
hudsonius 3,253 
rubricroceus 1 3 
whipplii 253 
nottii, Fundulus 
nuehalis, TTyhingnathns 
Page 
nymphs, dragonfly. 
21,32,34 
Obliquaria reflexa 
446 
Obovaria ellipsis.. 
446, 462, 463 
obtusatus, Hydrocharis 
Hydrophilus 
314 
238, 263, 314, 315 
occidentalis, Ruppia 
360,384 
ocellatus, Scisenops 
145, 184-186 
ochraceus, Enochrus 
263, 321 
Philydrus 
Ochthebius.. 333 
Odonata, as food for fish 255 
Odontidium 461 
sp ’ - 460 
CEdogonium 409,465 
oglinum, Opisthonema 162 
oligochaates, as food for fish. 255 
Ooeystis 461 
Opisthonema oglinum 162 
Opsopoedus bollmani 3 
ornaticollis, Dytiscus 296 
Thermonectes 236, 245, 262-264, 266, 290, 292, 296-298, 330 
Oscillatoria princeps 399 
sp 399,404 
Osmerus eperlanus 417 
osseus, Lepisosteus 1 
ova 442 
27 
ovatus, Hydrophilus-. 
Padden, Lake, Wash.: 
depth, temperature, and dissolved gases. ll g 
description 101 
fish 72 
plankton 101,129 
pala, Brachionus 400,403,409,410 
f. amphieeros, Brachionus 401,403-405,409 
v. dorcas, Brachionus 400,409,410 
v. dorcas f. spinosus, Brachionus.. __ 400, 405, 409, 410 
palia, Nitzchia 408 
pallidus, Lepomis 32,253,258 
Pandorina _. 460 
morum 461 
sp.. 461 
pantherinus, Berosus 263, 307, 311-313 
Paradise Lake, Wash.: 
fish 72 
plankton 101, 129 
thermal changes and gas conditions 70, 118 
parasites . 245 
as enemies of beetle larvae 245 
as enemies of beetle pupae 246 
dipterous 245 
hymenopterous 245 
ichneumonid 245 
parasitism of species of Anodonta 205 
Parnidse 236 
paupera, Donocharis 400 
pavement-toothed red horse 1 253 
Payette Lake, Idaho: 
depth, temperature, and dissolved gases. 118 
description 89, 90 
fish 90 
plankton 90,129,130 
Pedalion 409 
mirum 400,409,410 
Pediastrum 461 
duplex 399, 401, 402, 404, 405, 410, 461 
