x ILLUSTRATIONS. 
THE UNITED STATES BUREAU OF FISHERIES—Continued. Facing page. 
Plate CXLVI. Collecting cod eggs on a fishing vessel. Open-air salmon-rearing troughs, 
Craig’ Brooks "Maine 3.5/3: cnae here cieacterasiarendsc Sreye eeeeee Local inc onan aie 
CXLVII. Artificial spawning pond and raceway used in culture of rainbow trout. 
Tnterior,of arty picalitrombbatebenya: screen ata eee Cae 
CXLVIII. A fish transportation car. Interior of a fish transportationcar........... 
CXLLX. Deep-sea explonng steamer, Albatrossiaass mcs ast aes ele eter ie 
CL. Trial fishing on the Albatross. Marine biological laboratory at Beaufort, 
CLI. Alaskan fish traps and runs used by natives on Chilkoot stream. Salmon 
trap'in/anw Alaskans SiVel 3 o..\,2--ssese sieeiet eee cals al etalevere ete teetecere 
CLII. A Penobscot River salmon weir. Largest seine in the world............. 
CLIII. Catching and sorting the brood fish at a trout-cultural station in the 
Rocky Mountains. Stripping and fertilizing trout eggs............... 
CLEIV. Salmon hatehery at, /Baird\Califortitascies ce aie eo areas sieeie cere elects 
CLV. Fisheries steamer Fish Hawk. Main deck of steamer Fish Hawk, equipped 
for.shad “hatchin gon occtar genet cere ere ne aun ree ae 
CLVI. Fishery schooner Grampus. The fresh-fish fleet at T Wharf, Boston..... 
TEXT FIGURES—PART 1. 
INTERNATIONAL REGULATIONS OF THE FISHERIES ON THE HIGH SEAS:” 
Map showing territory covered by the Anglo-Denmark Convention of 1901.............. 
Map showing area designated in the award of the Fur-seal Arbitration Tribunal.......... 
A METHOD OF LOBSTER CULTURE: 
Fig. 1=3. Larval lobsters, lateral Views mics ove 05 wise apis cts atc om ath eiscete: Metaialate yeieleveivisle eimretale 
4-7. Larvaldobsters, dorsal View) ./<...sncr acscenen ya mie wes w acdniilcite wieretsinn ele cteiee 
A PROCESS FOR PRESERVING THE PEARL-OYSTER FISHERIES: 
Fig. 1. Plan of tray to contain pearl oysters for radiographing..............seeeeeeeees 
2. Longitudinal section of tray shown in figure ©. 0.2.5.6 5 .cceeccccescccccveecsene 
3. Conveyer to substitute for tray shown in figures 1 and 2...........ceesccecececs 
GOLDFISH AND THEIR CULTURE IN JAPAN: 
Wypieal forms iof gold fisky tails! tin =A cva, svete ators eaerarstenatateene ie: aievanete eleuetoiers Safeialvelevevalote ereieneye 
COMMERCIAL SPONGES AND THE SPONGE FISHERIES: 
Figs 2. Hook used by the spouge fishermen ot PB lorid ayaa. o.-1-:aicreieiateistererstelere Sal sielsiotaletetsisc 
2. Dredge, or gangava, used in Mediterranean sponge fisheries...............00005- 
3. Section of dredge frame, showing bend of iron bar at ends...............000000- 
4. Transverse struts sometimes used between bars of dredge frame...............-- 
A PRACTICAL METHOD OF SPONGE CULTURE: 
Fig. 1 and 2. Showing insulated attachment for lead-covered lines supporting sponge cut- 
PAM S ic ayiihs: Sets ard a afore, sd ah apa) ep ichaeay ts w'atslenyole Pose coueh ot atata saws) etsdeteg ateMetatah ane oh ataheteve ovale ret 5 
3. Needles used for threading cuttings on supporting wires................-2---00- 
4. Diagram showing average rate of growth of sponges from cuttings of various sizes 
at. Anclote Key oi) cats insta suahegel ata euats veel ee teenie meester ens ers toler eterctnret oles 
5 Diagram showing average rate of growth of sponges from cuttings of various sizes 
at Sugar) Loak Key «| s,s tcystare ot Tyas fete NS ere een ee ROE AT Oe IE ONT ale Teecrct 
6. Diagram showing comparative increase in volume of an entire sponge and of the 
aggregate of cuttings from sponges of equal volume.................0.e0eeue 
7. Diagram showing percentages of mortality among different lots of sponges grown 
from cuttings at Sugar Loaf Key and Biscayne Bay...................2ee0ee. 
577 
