4 
G. 
PAGE. 
Gales and ice, effect of. .117, 
126 
Ganin, M 62, 
81 
Gasteropods and Pteropods . 
67 
Gastraea 
23 
Gastrula stage of develop- 
ment 
22 
Gerbe 39, 
79 
Gills of the oyster exposed. . 
6 
Gittings, J. S 
XLVIII 
Groff, A. E 
LXXI 
Growth of oysters 
131 
Grubb, Thomas 
XLYII 
Guard-boats for superintend- 
ing 
153 
Guide practique de l’Ostrei- 
cultur 
40 
Gunby, Dr. H. H 
2 
H. 
Haeckel 23, 
74 
Hamlen, Wm 
XXIIT, XLIV, LV, LVII, 
LXXI 
Hardcastle, A. B 
LXVIII 
Hart, J. G 
40 
Hartman, Isaac 
LXIX 
Hatching of Rock-fisli eggs. 
XXIY 
Hatching operations liy, 
LVIII 
Hatching station improvised. 
LI 
Hayghe, Jos. A 
LXVIII 
Health Commissioner of 
Washington 
VI 
Heart of the oyster 
7 
Hermaphrodite oysters 
37 
Herring fisheries 
Y 
Hessel, Dr 
LXY 
Hines, Col. 
XXVIII 
Hodson, T. S. . . 
2 
Hoffman, Wm. H 
LXX 
Hoffman u. Schwalbe’s 
Jahres-Bericlite 
62 
Hollingswirth, E 
LVI 
Hollyday, Richard 
LXIX 
Home, Sir Everard 
79 
Hopkins, J. R 
LXVIII 
Horn, George M 
LXX 
PAGE. 
Hubbard, J. H. S , Answers 
by xt 
Hughlett, Col yiii 
Hughlett, Jr., Thomas 
XXYII, XLII, XLYIII, LYI, LXX 
Hupman, Henry lxxi 
Hurdles as spat collectors.. . 188 
Hydrometer for testing den- 
sities 194 
I. 
Ice affects the oysters in deep 
water 128 
Ireland, close time in 151 
Igleliart, Thos. S i,xix 
Impregnation, Artificial. . . . 218 
“ Failure of. . . 206 
Information from spat col- 
lectors 188 
Information given by oyster- 
men 126 
Instruments for fertilizing 
oyster eggs 15 
Investigation of tempera- 
tures 192 
Investigations from July 4th 
to October 20th, 1879 159 
J. 
Jenkins, Jr , W. H lvi 
Johns Hopkins University. . 63 
Jones, G. W., Answers by.. xi 
Jones, R xlix 
K. 
Kent, Alexander xlvi 
Kitzmiller’s farm li 
Koontz, J. S . xlvii 
K foyer, H 31, 79 
Kumlein, M xxxvir 
L. 
Laboratory of the Johns 
Hopkins University 1 
Lacaze-Duthier, H 39, 79 
Land-locked Salmon xlvi 
