of the Fishery Board for Scotland. 
Eggs of fishes, difficulty of diagnosing, 
when preserved, (15) 246. 
——-—— distribution of pelagic, (10) 
201 ; (13) 15, 258 ; (15) 219. 
—— --— duration of development of 
embryo, (15) 370. 
—— —— effect of currents in drifting 
pelagic, (17) 119. 
—— —— germinal vesicle of, (16) 106, 
121, 
—— —— growth of yolk in, (16) 116. 
—— —— haddocks feeding on, (4) 133. 
—— —— hatched at Dunbar, (13) 8, 
9, 123. 
—— —— histological changes at matura- 
tion of, (16) 120. 
—-—- —— identification of, (17) 81. 
—— —— in relation to trawling, (7) 401. 
—— —— increase in volume of, at matu- 
rity, (16) 112, 114. 
—— —-— influence of light on develop- 
ment of, (15) 178. 
—— —— influence of salinity on, (7) 403. 
intraovarian, (16) 100. 
— — intraovarian, of common dab, (16) 
96. 
—— —— of angler, (16) 125. 
—— —— of grey gurnard, (16) 96. 
—— —— of haddock, (16) 96. 
—— —— of John Dory, (16) 102. 
—— —— of Norwegian topknot, (16) 97. 
—— —— of torsk, (16) 118. 
in small plaice, (20) 356. 
—— -—-— maturation of, (16) 126. 
—— —— membranes of, (16) 104. 
—— methods of determining specific 
gravity of, (16) 138. 
—— —— methods of preserving, (14) 223. 
——- —— natural destruction of, (5) 231. 
—— —— oil-globules in, (16) 97. 
—— —— oil-globules in intraovarian of 
eel, (16) 98. 
—— —— physical characters of yolk, 
(16) 136. 
—— —— primitive circulation in, (16) 
211. 
—— —— rate of diminution of yolk in 
plaice, (16) 223. 
—— —— reaction of yolk, (16) 137. 
relation between oil-globules 
in, and oil in fish, (7) 386. 
—-— —— relation of character of yolk to 
time taken in development, (16) 123. 
—— —— relation of yolk to size and 
development of zoéa in crustacea, (19) 
114, 115. 
—— —— remarks on, (3) 61. 
—— —— report on, procured by ‘“‘ Gar- 
land,”’ (15) 246. 
—— —— role of phosphorus in matura- 
tion of, (16) 150. 
—— seasonal abundance of, in Loch 
Fyne, (17) 94. 
—— —— specific gravity of, (16) 142. 
—— — — specific gravity of demersal, 
(16) 142. 
—— —— specific gravity of pelagic, (17) 
116. 
—— — — teleostean, maturation of, (16) 
88. 
197 
Eggs of fishes, total volume of, produced 
by various fishes, (16) 123. 
unidentified, (11) 245, 246. 
——-—— variation in buoyancy 
pelagic, (17) 117. 
—— —-— variation in size of, (13) 15, 271. 
—— —— variation in specific gravity of 
pelagic, (16) 114. 
—— —— weight of, (16) 145. 
—— —— zona radiata of, (16) 104. 
Eggs of fishes, pelagic, cause of buoyancy 
of, (16) 112. 
—— —— carried by currents, (8) 258; 
(15) 337 ; (16) 238. 
—— —— cause of floating of, (16) 90. 
—— —— change of volume in, during 
maturation, (16) 142. 
—— —— character of yolk in, (16) 118. 
—-— —— devoured by crustacea, (9) 395. 
—— ~——— direction of drift of, (15) 374. 
—— —— distribution of, (15) 13. 
—— —— distribution of, vertical, (15) 
250. 
—— —— distribution of, 
Loch Fyne, (17) 108, 116. 
drift of, in Loch Fyne, (17) 121. 
—— —— eaten by herring, (17) 119. 
—— —— estimate of the number in Loch 
Fyne, (17) 109. 
—— -—— from Aberdeen Bay, (8) 289; 
(11) 264 ; (12) 300. 
—— --— from Firth of Clyde, (9) 335- 
336 ; (15) 247, 251. 
—— —— from Firth of Forth, (8) 286, 
288; (9) 336-349; (10) 304-315; (11) 
257 ; (13) 260-263, 269 ; (14) 226 ; (15) 
221, 247, 251. 
—— —— from Loch Fyne, (17) 79. 
—— —— from Montrose, (8) 287; (11) 
254; (12) 300; (14) 225. 
—— —-— from Moray Firth, (8) 287 ; (9) 
340 ; (11) 254; (12) 300; (13) 268, 270; 
(14) 224 ; (15) 255. 
—— —— from Orkney, (18) 269. 
—— —— from St. Andrews Bay, (8) 
286, 287 ; (9) 340; (11) 263; (12) 298, 
299, 301; (13) 260, 261, 264; (14) 225. 
from Stonehaven, (12) 300. 
——--—-— in Loch Fyne, comparison of 
number with number of copepods, (17) 
112: 
—— --— in Loch Fyne, stage of develop- 
ment of, (17) 100. 
—— of angler, (21) 189. 
—— of armed bullhead, (16) 91. 
—— of Atherina hepsetus, (9) 419. 
—— of ballan wrasse, (5) 245. 
—— —— vitality of, (5), 246. 
—— of bib, (16) 91, 115; (17) 94. 
—- of brill, (10) 279; (16) 91, 114, 115. 
—— of Carcinus menas, (21) 138. 
—— of cat-fish, (5) 356 ; (16) 91 ; (23) 252. 
—— of coal-fish, (10) 287 ; (11) 242 ; (12) 
218; (13) 273; (16) 91, 114. 
—— —— distribution of, (15) 243. 
—— —— in Firth of Clyde, (15) 249. 
—— of cod, (13) 272; (14) 223; (16) 91, 
114, 115. 
—— ——- distribution of, 
Clyde, (15) 249. 
of 
vertical, in 
in Firth of 
