BIOLOGY. 
Moll. 37 
12. Phylogeny and Classification. 
Phylogeny of Gastropoda according to the disposition of the nervous 
system;° Guiart (190).—Phylogeny of Melania- group; Moore (335).- 
Phylogeny of Pelecypoda\ Philippi (386).—Classification of recent Pele- 
cypoda by the hinge; Vest (570). 
13. Stray Notes. 
Habits of land-shells; Bullen (62).—Glycogen in snails and slugs; 
Creighton (103). — Note on slug following a closed trail; Daniel, Nature 
lix, p. 177.—Habits of Protobranchia; Drew (142).—Habits of Patellidoe ; 
Fischer (154).—Dispersal of Vnionidoe \ Frierson, Nautilus xii, p. 139.— 
Habits of some Invertebrata; Harrington & Griffin (194).—Food as 
influencing variation in Helices ; Hawkins (198).—Note on parasite of 
Lucapina crenulata ; Johnson, P. Calif. Ac. Zool. i, p. 178 .—Helices 
climbing in dry weather; Jones, J. Conch, ix, p. 184.—Notes on the 
dimensions of Mollusca; Jousseaume (238).—Iron and Copper in Oysters; 
Kohn (254).—On the absorption of water by Slugs; Kuenkel (258).— 
Green pigment in Invertebrata; Newbigin (348).—Mimicry in Philo- 
mycus\ Simroth (474).— Limncea peregra leaving its shell; Stubbs, J. 
Conch, ix, p. 164.—Habits of Paryphanta and Rhytida ; Suter (526).— 
Sphcerium forming a £ float ’; Vaillant (562).—Parasites of Natica and 
Sepia ; Vaullegeard (567). — Helices leaving their shells; Welch, J. 
Conch, ix, p. 217.— Nautilus , habits of; Willey (585).—Habits of Helix 
kelletti ; Williamson (586). 
14. Economics. 
Artificial production of pearls in Haliotis ; Boutan (52).—Notes on 
oyster culture; Carazzi (71, 72): Ficalbi (152).—Oyster culture in Corn¬ 
wall; Cunningham (113)—Production of pearls; Dastre (123).—Cultiva¬ 
tion of Heleagrina ; Diguet (138).—Oyster culture in America; Henking 
(207).—Histology and Bacteriology of the Oyster; Herdman & Boyce 
(209).—Life conditions of the Oyster; Herdman, Boyce & Kohn (210).— 
Cultivation of Cardium ; Johnstone (230).— Margaritana in Danube; 
Lahner (260).—Purple dye used in Central America; Martens (290).— 
Economic uses of British non-marine Mollusca; Masefield (297). — Oyster 
culture in Louisiana; Moore (333).—Cultivation of ‘pearl-shell’ in Torres 
Straits; Pace (371). — The pearly fresh-water Mussels of the United 
States; Simpson (471).—The Mussel fishery and pearl-button industry of 
the Mississippi River; Smith (493).—Note on Haliotis fishery in California; 
Stearns, Nautilus xiii, p. 81. — Freshwater pearls of America; R. L., 
Nature lx, pp. 150-152. 
15. Collecting and Arrangement. 
Popular notes on arrangement of shells; Keep, Nautilus xii, p. 132. 
