ILLUSTRATIONS 
Herring Fisheries of England, Scotland, and Holland: Facing page 
Plate 1. Views of the herring industry of Yarmouth, England . 1 
2. Herring vessels and herring-packing establishments at Vlaardingen, Holland 16 
Japanese Oyster Culture: 
Plate 3. Oyster park at Tanna. General view showing bamboo collectors arranged in parallel lines 24 
4. Oyster park near Nihojima. Typical living ground, or ike-ba, with hedge of shibi 28 
5. Oyster park near Nihojima. General view showing newly arranged toya 32 
6. Bamboo oyster collectors, or shibi, after having been in use about one month, A; six months, B; 
eighteen months, C. Detached oysters shown at D 36 
7. Map of the oyster and seaweed concessions in one of the estuaries of Nihojima to show how com- 
pletely the cultural area is developed 38 
Habits and Culture of the Black Bass: 
Plate 8. Black bass pond, fry retainer, and bass bed 40 
Hearing and Allied Senses in Fishes: 
Plate 9. (1) Side view of aquarium, showing sounding apparatus at right-hand end and suspended glass cage 
in which the fish were confined. (2) End view of aquarium showing sounding apparatus. (3) 
Dorsal view of brain of Fundulus heteroclitus, dissected to show positions of the roots of the fifth 
and seventh nerves (V), the roots of ninth and tenth nerves (X), and the internal ear as indicated 
by its otolith. (4) Dorsal view of head of Fundulus heteroclitus, to show region where the following 
nerves were cut: The fifth and seventh (V), the eighth (VIII), and the lateral-line nerve (X). (5) 
Side view of Fundulus heteroclitus, showing the region where the lateral-line nerve was cut (X) 48 
Natural History of the Quinnat Salmon: 
Plate 10. (1) Lower McCloud River Falls, which prevent the ascent of salmon. (2) Sacramento River at Duns- 
muir. (3) Pit River Falls 67 
11. (1) Sacramento River near Sims, ‘'Pool B," referred to on page 102. (2) Sacramento River in the 
vicinity of Princeton 72 
12. Diagram showing number and size of young salmon taken at Walnut Grove, 1899 94 
13. (1) Adult and grilse forms of male salmon, with genital organs mature. (2) Lamprey scar on opercle 
of salmon. (3) Died from gill parasites, last of summer run, September, 1900 120 
14. Diagram showing the passage of two runs of salmon from Vallejo to Sacramento, 1898 124 
15. ( A ) Female that had spawned all but about 500 ova, showing that the injuries are received while 
spawning the last few ova or after all have been spawned. (B) Male, apparently exhausted from long 
residence in fresh water, but not from being on spawning beds; typical condition of late summer- 
run males, Battle Creek, September 15, 1900. (C) Female, with ova but half developed, Battle 
Creek, September 15, 1900; died from long residence in fresh water. (D, E) Two males, grilse and 
adult, showing extreme cases of fungous growth, October 22, 1900 138 
16. Tails of female salmon from spawning beds. (A, B) Tails of spa wned-out salmon. (C) Tail of branded 
specimen No. 91, the tail being perfect eight days before photograph was taken. (D) Tail of salmon 
with about 500 ova yet remaining 140 
17. Sacramento River between Redding and Tehama. Spawning beds of fall salmon indicated by clusters 
of dots 142 
18. Chart of Sacramento River. Observation stations indicated thus, O 142 
Fresh Water Fishes of Western Cuba: 
19. (1) San Juan River, looking upstream from the first bend above the United Habana Railroad bridge. 
(2) San Juan River from above the United Habana Railroad bridge 213 
20. (1) Rio San Diego at Paso Real, looking upstream from below Western Railroad bridge. (2) Rio del 
Pinar, looking upstream from bridge 216 
21. (1) Stygicola dentatus (Poey). (2) Lucifuga subterraneus Poey. (2) Lucifuga, a blind fish contain- 
ing unborn young with well-developed eyes 236 
Rotatoria of the United States: 
Plate I. (1-6) Diurella tigrisMiiller. (7-10) Diurella tenuior Gosse. (11-14) Diurella weberi, new species 352 
II. (15-18) Diurella insignis Herrick. (19-23) Diurella porcellus Gosse. (24-26) Diurella sulcata Jennings.. 352 
III. (27-31) Diurella stylata Eyferth. (32-34) Diurella brachyura Gosse. (35, 36) Diurella cavia Gosse 352 
IV. (37-39) Diurella rousseleti Voigt. (40-44) Diurella dixon-nuttalli, new species 352 
V. (45-49) Rattulus gracilis Tessin. (50-52) Rattulus scipio Gosse. (53, 64) Rattulus macerus Gosse 352 
VI. (55-58) Rattulus multicrinis Kellicott. (59-61) Rattulus capucinus Wierz & Zach 352 
VII. (62-64) Rattulus cylindricus Imhof. (65, 66) Rattulus latus Jennings 352 
IV 
