ILLUSTRATIONS. 
A ‘PLAN FOR PROMOTING THE WHITEFISH PRODUCTION OF THE GREAT LAKES: 
Fig. r. Map of Lake Superior, showing whitefish area... ...........ccccccccvcccsecces 
2, Map) ot Lake Michigan, showing whitefish areas... .....c0ces see te vecwesenccus 
3. Mapjof Lake Huron, showing whitefish area... 2 os. 0 0s ceeee cscs weasetoescoes 
Z-uMaprot Lake Erie) Showine, whitefish Area’. 0c. .cj0<sicis\c0 wa vise vee seviels « weisn sian’ 
5 Mapiot Make Ontario, Showing. Whitefish ated. 66s... cio. cc esecmciew ewe stewie stelcae es 
TEXT FIGURES—PART 2. 
FISH-CULTURAL PRACTICES IN THE BUREAU OF FISHERIES: 
Ess eee LAME NVA ta SOLU ELOUWS |, fetes 0, as atave) N-feteyateriarora in oelens oie, seaiaate eyeitielc¥ercisis © cietaielele,e'sic 
2. Plan of barricade in Phinney Creek, near Birdsview, Washington................ 
3, Bront elevation of barricade’showml in fignre 2.5 .cL. sewn s demsicecciin averse sine cw 
4. Side elevation of barricade shown in figures 2 and 3............ccccecccccsscees 
PIECE ENCE aN en AN CLE VIE Asay na Peca'e o/s Sycles 0b ain ei vietefelelerabeteaieratelatatamieial siete oa 
6. Detail'showing method of fastening racks .. 2... jcc cece cadeecicvewsciiebocecce ss 
7. Atkins-Dinsmore shipping case, longitudinal section... ........... eee ee eee eens 
SOURIS AIA GNSMRMMCR LB i ecece Ns ePUarzoc cosa eu a's) Slice Hien =’ egsieie oie eter pses aah ele ial BTavexeRainye’ Sveyrovannre ols a's 
RE ATE ACLOSSISECIIOMN NC Wns cae ms Acie cpeveicl ceva sca = «cin aYain acaaidyara wip isiehatel er sieletacataatarcvere-aye 
TOM ACBPU INE Shipping CASE, SECHONM co ieec's: eels sims sels « oie slarsiaixisleieivwu eelsee viewieive ease 
Rete REL Co anNS ART ect eae eevee Pee) ere yeah ren ne as) © -ero.ei8) ania. aehavalle/ eletae eratataicteretctaisceteve win 
12. German-Chile shipping case, longitudinal section............0ccccccsecccesccces 
PER aR LER LE aT) UM Te cs eet ete si ns Pace ace pelle) ovate: cakes wie alot s.caleiny odatien etal oveVerd afereiapehays Gleis nec: 
A NEW PRINCIPLE OF AQUICULTURE: 
Diagram of houseboat and floats [hatching and rearing apparatus] ..............eeee0eee 
A METHOD OF CULTIVATING RAINBOW TROUT: 
Diagram: Planiot ponds and Spawning LACE: Rive ec ara oleine ie wie vpieiecleisis veces es Reacee 
By OPAWHINE LACE SECHOMAL VIEWS. auc, s:s/0 0.0 .<,5.o/olalsisisiete soe sleleveye'vielave sie.siale ei sieerale 
Bemuegestemeartan Pement Op SHeAg = c/n n..o civiseie eurisl eles ote sl aie tie sielwiate sie eleua"axel) /« 
APPARATUS AND METHODS AT MARINE HATCHERY, FLODEVIG, NoRWay: 
OCR MEA NCON HG e yi MAT CHIE SLALOM ayuiatsis siese elovelatere's/staleisisia)s-sie\tiesta/s (d)e/alejeie eee) ee le 6s 
eNO LAT My PHONIC WO LAT as euciets! susie telcee sede tarens lel avaiesarerele ti eunie oid cleldidinie’ ai ctave, start eels ick ane & 
Bee AIMe AS RP ULE 2) (SO Wit hs SCCLIOUS cha ciate laters x/olava)lis\svare)alaiele alataiy  clatele;s/eleyeleie its heres 
4; Device for installation ‘of ege collectOrs «5\..<)0 2 sic:<0ic1s\c cisisieeie'sit cia cra'eisie ce vie vin ceeds 
Bonatleras MP ULet A SHOWAMM SECHOM e.2 ols cietetcun alo ein)sle/o ci eed a alae eres ieietsieterayeleiere sates eae 
peo ects ta Sed eNO Ae ELS 7a croc airs Na ate corel eretanerae ie iota srncacs Sym eVere invols/e/ steele ieiat ehersierayetn ie love 
Fam IU AON telat teat te ten ey enol ais tA esot of aralisisiat ule tcet ey ease) aa’ svctin/ el aterorenege)efey'sip\ tia Vahatexste lars’ ereleystel avs 
SepVOM ero epASLe UP UCIT AO Torney cite ols teda\c etal eiainta’s Chelare nistaleliove lesa ai chale stevei shale ore'e are eval ccs 
PROPAGATION AND PROTECTION OF THE RHINE SALMON: 
Fig. 1. Diagram illustrating sizes of salmon ascending the Rhine. .................0000- 
2. Diagram showing ascent of Rhine salmon in different months................... 
CULTIVATION OF THE TURBOT: 
Hig lestathy development Of THE PULDOb. s:sj2:212 15 <ieeis cleiwicie aiciaid levels Wvelss igi erers vies diets Sabaan 
Pee SPPATARUS FOL MAL MIMO HUT DOL iajaie sare loci ais) aiphavorears ra atela|aic/opavale eletavelejoieiis's/eieials s'ela.e 
TREATMENT OF FISH-CULTURAL WATERS FOR REMOVAL OF ALGA!: 
Figs. 1 and 2. Apparatus for regulating flow of copper solution .................0eeeeee 
A DEVICE FOR COUNTING YOUNG FISH: 
Meastireiby means:of which'to count young fishy <2. .-..6. cece sews sces ced seu csieue vases 
A METHOD OF MEASURING FISH EGGS: 
Fig. 1. Metal trough for use in determining diameter of eggs... ............ 22 ee eee eee 
2. Portion of diagram showing method of finding number of eggs per liquid quart... . 
AN IMPROVEMENT IN HATCHING AND REARING BOXES: 
ig. 1-3. Design of proposed hatching and rearing box... 2.6. . 6... cece ce see cece secees 
1021 
