14 THE CONCHOLOGISTS’ EXCHANGE. 
WANTED :—To exchange shells from th rivers, 
creeks, lakes and sloughs in the vicinity of the mouths 
of the Missouri-and Illinois rivers. 
Hon: WM. ADAMS, Alton, Ill. 
OFFERED :—Liberal exchanges of Cape shells for 
specimens of Marine and Fresh-water shells from all 
parts of the world. > 
MARY GLANVILLE, Grahamstown, So. Africa. 
GOOD series of British shells wanted for a small 
public museum; also many of the rare and local species 
Limnea, peregra monst. sinistrorsum, etc., offered in 
exchange by §. C. COCKERELL, 5 Priory road, 
Chiswick, W., England. 
OFFERED :—Acmeea patina, pelta, persona, Esch; 
spectrum, scabra, Nutt.; Lottia gigantea, Gray ; 
Gadinia radiata, Cpr.; Scurria mitra, Esch.; Fissurella 
volcano, Rve.; Crepidula rugosa, Nutt.; Cerithidea 
sacrata, Gld,; Calliostoma_ costatum, Mart.; Chlo- 
rostoma funebrale, A. Ad.; brunneum, Phil. Littorina 
planaxis, Nutt., scutulata, Gld.; Monoceros lapilloides, 
Con.: Nassa fossata, Gld.; Olivella biplicata, Sby.; 
Purpura saxicola, Val., canaliculata, Ducl.; Bittium 
filosum, Gld., Ocinebra circumtexta, Stns.; Acanthop- 
leura scabra, Rve.; Tellina Bodegensis, Hds ; Acmoea 
asmi, Midd.; Machaera patula, Dixon; Macoma 
nasuta, Con, G. W: MICHAEL, Jr., Morro, Cal. 
OFFERED :—British marine shells for Land and 
Fresh-water shells. Specimens must be best of their 
kind. Mr. MARSHALL, Sevenoaks, Torquay, Eng. 
WANTED :—To correspond with colonial or foreign 
collectors, with a view to the exchange of shells. 
C.L.S., 8 Trinity St., Hastings, England. 
Miscelianeous Exchanges for Mollusca. 
OFFERED :—California shells, plants radiates and 
butterflies to exchange for the same. 
Mrs. R. W. SUMMERS, San Luis Obispo, Cal. 
WANTED :—Shells, sea-mosses, skulls and all kinds 
of curiosities for my public museums, for Illinois shells, 
zinc, ores, etc. SEEBACH, Peru, Ill. 
WM. CASH, Elmfield Terrace, Halifax, England, 
wants good shells from all parts of the world. 
Offered—Natural History specimens in all branches, 
and scientific books and apparatus. 
TERTIARY and other fossils from Southern States 
and Europe; 50 species of Bird’s Eggs ; and 60 pounds of 
Minerals consisting of Amethyst on Agate; Agates 
rough and polished; Pyromorphite; Native Copper; 
Zinc blende; Galena; rare Iron Ores, &c., &c., for 
strictly fine and correctly named Mollusca from South 
and Central America, Asia, Africa and Australia. 
Address W. D. AVERELL, 
Chestnut Hill, Philada.} Pa. 
BOOK EXCHANGE. 
OPEN TO ABL SCIENTISTS AT THE SAME RATE AS 
‘* EXCHANGES IN MOLLUSCA.”’ 
OFFERED:—“ A Manual of Zoology,’’ by M. 
Milne Edwards; ‘‘ A Manual of Blow-pipe Analysis,” 
by Wm. Elderhurst, M. D.; ‘ Sulphurets,” how 
concentrated, worked and assayed. Wanted—a good 
copy of ‘‘Woodward’s Manual of Mollusca’’ and 
other works on Conchology. 
G. W. MICHAEL, Jr., Morro, Cal. 
WANTED :—‘Our Common British Fossils and 
where to find them”’ in exchange for ‘* Lowe’s British 
Grasses.” O. REES, 59 Sandbrook Road, 
London, England. 
OFFERED :—Journal of Conchology for 1883 and 
1884 to exchange. What offers? 
B. M, O., 7 Cavendish Terrace, Torquay, Eng. 
WHAT offers for the ‘‘ Book of Days’’ by R. 
Chambers. H. E.,Constable’s Tower, Dover, England. 
OFFERED :—Woodward’s Manual of the Mollusca 
’75 Edition; Leidy’s Memoir of the Extinct Sloth 
Tribe, N. A.; Lea’s Syn. of Family of Naiades, ’52 
edtn.; Hayes’ Descrip. Inf. Max’y Bones of Masto- 
dons, 10 plates; Agassiz & Gould’s Comp. Physi- 
ology, Bohn’s edt’n; Coultas, Prin. Botany, Crypto- 
gamia; Lea’s On a Fossil Saurian of the New Red 
Sandstone Formt’n; Leidy’s Geol. sketch of Est. & 
Fr. Water deposit of Judith R. &c. &c., pres’t copy ; 
Meigs’ Obs. Rep. Organs of Dolphin; Lesquereux’s 
Cretaceous Flora, 50 plates, Smith n Mis. Col. Vol. 4, 
Neuroptera, Vol. 6, Diptera and Coleoptera, 3 pp. out. 
WANTED :—First 3 vol. Lea’s Obs. Genus. Unio ; 
Say’s American Conchology; Goulds Invertebrata of 
Mass.; Kiener’s plates of Shells; Carpenter's works ; 
Tryon’s Monog. Terr. Moll. of U. S.; Sowerby’s 
Conch. Manual and Plates; or offers in works on 
Conchology. W. D:. AVERELL, 
Chestnut Hill, Phila. 
PUBLICATIONS RECEIVED. 
1. On Pyrgulopsis, a new genus of rissoid 
mollusk, with descriptions of two new forms, 
by R. Ellsworth Call and Harry A. Pilsbry. 
2. Description of a new Hydrobia with notes 
on other Rissoidze by Harry A. Pilsbry, from 
H. A. Pilsbry, Davenport, Ia. 
Brachiopoda and Lamellibranchiata of the 
Raritan Clays and Greensand Marls of New 
Jersey, by Prof. R. P. Whitfield, from Hon. 
Alfred C. Harmer, M. C. 
Geological Survey of Alabama, Bulletin No. 
1, Preliminary Report on the Tertiary Fossils 
of Alabama and Mississippi, by Truman H. 
Aldrich, M. E., from the author. 
