THE - CONCHOLOGISTS’ -: EXCHANGE. 
41 
altilis in the Philadelphia collection of the 
Academy of Natural Sciences were gathered 
here, and it is probable that no finer specimens 
inhabit the river. 
I have never seen a living specimen of JZa7- 
garitana undulata within the Park limits, though 
its presence near the “ Falls” has been reported. 
Linnea catascopium, another species common 
to the lower portions of the river, are, I think, 
absolutely unknown above Fairmount dam. 
There appears to be something in the ebb and 
flow of the tides which is necessary to the ex- 
istence of this species, if not to that of JZ 
undulata, also. 
In conclusion I will add that pure olive orl 
applied to “dead” fresh water shells will, in 
most instances, restore their natural colors, and 
at the same time prevent the epidermis from 
cracking ; a mishap that leaves a shell as un- 
natural as it is unsightly. 
VALVES. 
Mr. E. J. Smith, of Natick, Mass., claims to 
have found a specimen of Litforina Littorea, 
measuring 143 inches in length, and several 
others nearly as large, on a reef called the ‘* Dry 
Breakers,” at Beverly, Mass. 
The following extract from a letter received 
from Mr. Royal Holbrook, a member of ‘‘Con- 
chologists’ Exchange Club, No. 1,’ will show 
what may be done by active young searchers for 
shells. * * * “J have about 125 specimens, 
“(H. multilineata, Say), which I gathered in 
“the following way: Opposite Winona across 
“the lake, and next to the bluffs is a large 
“meadow which contains an abundant supply 
“of land snails, as well as many Pupas. 
“There is also a spring, and from this is 
“a ditch leading from it to the lake. Last 
“« Spring, when the frost was coming out of the 
“ground, I visited this place and found the 
“Helices upheaved from the earth into the 
“ditch, and on its sides, and I found also that 
“they hibernated in clusters of ten to fifteen in 
“a single place.” 
Young men and women under 18 years of 
age are charged a membership fee of but one 
shilling per annum in The Natural History 
Association of New South Wales, and are al- 
| 
| lowed every advantage enjoyed by older mem- 
bers, who are charged five shillings. ° 
The following new species of land and fresh- 
water shells from Maclay Coast, New Guinea, 
were found by Baron Maclay and named by 
John Brazier, F. L. S.: Helix (Geotrochus) 
Maclayana, Helix ( Geotrochus) Gorenduensts ; 
Flelix (Rhysota) Achilles ; Melania Wallorien- 
sis; Paludina Kowtayiensis, A new Onchi- 
dium, O. chameleon, Brazier, was found at Lane 
Cove River, Port, Jackson, N.S. Wales; also, 
anew Bulimus, 4. Rossttex?, Brazier, was tound 
at Nehone Bay, Northwest coast of New Cal- 
edonia both of which were described by Mr. 
Brazier, 
Mr. C. A. Hargrave of Danville, Ind., writes 
that he met with great success on a collecting 
trip along the Wabash River at Montezuma, 
Ind., lately, and secured a half-bushel of Unios 
of different species in a short time. 
Changes of P. O. address: George W. 
Puterbaugh from Greenfield, Ind., to Elkhart, 
Ind. J. M Henderson from Lawrenceville, 
N, J.,to Harvard College, Cambridge, Mass. 
Zagtvange Colunn. 
Terms to NON-SUBSCRIBERS, which must be 
cash with order, are as follows: Exchanges of 20 
words, including address, 10 cents; for each addi-| 
tional 10 words the charge will be 5 cents. No ex- 
change will be inserted for less than 10 cents. 
Each subscriber to Volume II, will have the privi- 
lege of inserting three (3) free exchanges of twenty- 
five (25) words each, including address, This rule is 
made to include those who have already subscribed 
in good faith at the old rate, 85 cents, or those who 
have received ““New Subscription” blanks and are 
engaged in soliciting subscriptions at the former 
price. 
Wanted.—South American land and fresh-water 
Shells. Offered.icCeylonese, Indian and _ others 
Send list. MISS LINTER, Arragon Close, Twicken- 
ham, England. 
Offered.—Cyprea helvola, erosa; Harpa ventri- 
cosa; Nassa reticulata, variabilis; Trochus cinera- 
rius, exiguus; Gibbula Richardi; Patella Lusi- 
tanica; Phasianella Kochii. G. W. MICHAEL, Jr., 
Morro, Cal, 
