792 
PROCEEDINGS OF THE ACADEMY OF 
[Dec., 
Naticidae, Calyptraeidae, Oiiustidse, Turritellidae, Vermetidae, Cae- 
cidas, Eulimidae, Pyramidellidae, Turbonillidae, 1886, 461 pp., 79 
plates. IX, Solariidae, Iantliinidae, Trichotropidae, Scalariidae, 
Cerithiidae, Rissoidae, Littorinidae, 1887, 488 pp., 71 plates. X, 
Neritidae, Adrorbiidae, Cyclostrematidae, Liotiidae, 1888. 
Manual of Conchology, Structural and Systematic. With illustra¬ 
tions of the species. By George W. Tryon, Jr., continued by 
Henry A. Pilsbry. Phasianellinae, Turbinidae, JDelphinulinae, 
1888, 823 pp., 69 plates. XI, Trochidae, 1889, 519 pp., 62 plates. 
XII, Stomatellidae, Scissurellidae, Pleurotomariidae, Haliotidae, 
Scutellinidae, Addisoniidae, Cocculinidae, Fissurellidae, 1890, 
328 pp., 65 plates. XIII, Acmseidae, Lepetidee, Patellidae, Titis- 
caniidae. 1891, 195 pp., 74 plates. XIV, Lepidopleuridae, 
Ischnochitonidae, Chitonidae, Mopaliidae, 1892, 350 pp., 68 plates. 
XV, Acanthocliitidae, Cryptoplacidae, Actaeonidae, Tornatinidae, 
Scaphandridas, Bullidae, Akeridae, Hydatinidae, Ringiculidae, 
1893-94, 436 pp., 61 plates. XVI, Philinidae, Aglajidae, Gastrop- 
teridae, Aplysiidae, Pleurobranckidae, Umbrellidae, etc., 1895, 262 
pp., 75 plates. XVII, Scaphopoda. By H. A. Pilsbry and B, 
Sharp. Aplacophora. Index to Series, 1897-8, 348 pp., 48 plates. 
Second Series : Tulmonata. Manual of Conchology, structural and 
systematic. With illustrations of the species. By George W. 
Tryon, Jr. I, Testacellidae, Oleacinidae, Streptaxidae, Helicoidea, 
Vitrinidae, Limacidae, Arionidae, 1885, 364 pp., 60 plates. II, Zon- 
itidse, 1886, 265 pp., 64 plates. Ill, Helicidae, 1887, 313 pp., 63 
plates. IV, Helicidae, 1888, 266 pp., 69 plates. 
Second Series : Pulmonata. Manual of Conchology, structural and 
systematic. With illustrations of the species. By George W. 
Tryon, Jr., continued by Henry A. Pilsbry. V, Helici¬ 
dae, 1889, 216 pp., 64 plates. VI, Helicidae, 1890, 324 pp., 68 
plates. VII, Helicidae, 1891, 225 pp., 61 plates. VIII, Helicidae, 
1892, 314 pp., 58 plates. IX, Guide to the Study of Helices, 1894- 
95, 366 pp., 71 plates, and Index to Helices, 126 pp. X, American 
Bulimi and Bulimuli, Strophocheilus, Plekocheilus, Auris, Buli- 
mulus, 1895-6, 212 pp., 51 plates. XI, American Bulimulidae : 
Bulimulus, Neopetraeus, Oxychona, and South American Drymaeus, 
1897-8, 339 pp. 51 plates. XII, American Bulimulidae : North 
American and Antillean Drymaeus, Leiostracus, Orthalicinae and 
Amphibulimae, 1899, 258 pp., 64 plates. XIII, Australian Buli¬ 
mulidae : Bothriembryon, Placostylus. Helicidae]: Amphidromus, 
1900, 253 pp., 72 plates. 
(Of the Manual of Conchology from Vol. I to the first part of Vol. X 
of the first series and Vols. I, II, III and IV of the second series 
were published by Mr. George W. Tryon, Jr. The work was 
bequeathed by him to the Conchological Section of the Academy 
and has since been continued by Henry A, Pilsbry, D.Sc.) 
