


504 BOOKS RECEIVED. 
. P. S, Glen Falls, New York.— A quotation from Agassiz’s Method of ped 
in Natural History, p. '216, M 5 pe you the desired information regarding the egg- 
cases of the cockle” you speak o No one who has ever w — "M ss sand beaches in 
summer can have failed to tient what the children call ‘ ucers. The name is 
not a bad one, with the exception that the surging lacks a bot Vieh. ihe form of these 
circular bands of sand is certainly very like a saucer w ith "he bottom kooeked out. 
Hold one of them against the light and A you will see ie it is Nes sn of countless 
transparent vui DM of the size of a small pi pin ad. 'These are the ome of our 
common Natica, o: nail. Any one who re are the outline of this shell will 
easily unders stau tke fw vaa ss by which its eggs are ‘left lying on the beach in the fo mae 
Tha ave described. They are laid in the shape of a broad, 5h ort ribbo nne sed betw 
the mantle of the animal and its shell, and, passing out, they cover the exterior x the 
shell, over which they are rolled up with a kind of gh utinous enve elope,—for the eggs 
Are held together by a soft glutinous substance. Thus MG um pr the Natica, whose 
habit it is to burrow under the surface of the beach, soon co itself with sand, the 
particles of which, i with the glutinous subst is ot “th. e eg kly forms 
a cement that binds the whole together in a kin 8 When consolidated it dro 
ir es ; having en the uld of it 1 it were, and retaining the 
curve which distinguishes the Natica. Although these saucers look € t 
will be found tha ges are not soldered together, but are simply lapped 
the other. Every on e of the thousand little spheres erowded into such a ciel’ a 
a T 3 "M : 
IW. Minneapolis, Minn. — The Philadelphia Vireo (Vireosylvia Philadelphica 
Cassin), ten by you at tne, nn respecting whose history you enquire, is à 
spesies jot very well kno gwa. It was first deac ribed by Mr. Ma ari from 
© f a x 
u 
D 
and 
at t| aine 
Guatemala. But a icd n cimen is thus far known aom Py ag a ‘taken by 
Professor C. E. Ham AU = As bep it pridie ise be ‘ist ore common in the 
interior. In May, 1857, nd it on the most c n Vireos in Cook bus miy 
Illinois. It is ^ ce d iid to hav ^d wide distribution. "m m & in 
general appearance, it greatly resembles t the well ew DEM "bling V o (Tireosptta 
ilva Cass.). For descriptions of this species see Pro Arad. NA DE DI nu 
53; Baird's Birds of North America, p. 335; Baird's [rens f ‘ican Birds, p 
The Yellow-bellied Flycatcher (Em mpia idonaz Auvirentris Bair en respecting which. 
make a similar inquiry, is also a species imperfect] wn. First described by 
8. F. and W. M. Baird, in 1843, from spothueas tak te ix Pentsy lvania, its range 
since been found to extend throughout eastern North America, if not throughout the 
continent, but it appears to be nowhere very common. Its r eed habits, and pho 
resemblance, at .a little distance, to the more common adiu 8 of its penus dou "— 
tend greatly to render its capture so relatively unfrequent. It shows a marked pre : 
lection for thickets and wooded Situations. In Massachusetts it is m more - less com 
mon in May, and towards the close of summer, but I am Dor aware that as been 
seen here in the breed ding season, although its ah gi range is known to ene d from 
the District of Columbia to Labrador. Its ra w bu ta mewhat DA arm a d 
have been deemed by some to be worthy of peras ded a a song. 1t is fully deseri 
in the later general works on North American Birds. — J. A. 
—  9o.——— 

BOOKS RECEIVED. 
Sketch of t. the e Life of Professor Chester Deri B. Anderson. Albany, 1869. UR 
n GontribuHons Jrom the ME Laborator: M m e College. xx. On Durangite a Fluo-Arse- 
nate fi rango in By G. J. Bru sh. xxi. 8yo. pp. 4. dx 
tcd he ta Y s Stone vi e which fe) “ole eae 5th, 1868, in Franklin Co., Alaba Alabama. By s 
7 ! n Jou Arts, New Hav 
American Bee Journal et. s Isi. rnal of Science and Arts, 
Sept. Map of 
„4 Guide-Book of Florida and the S. ourists, Invalids and Emigrants, with a@ 
the St. John River. By D. G. She M. d a oo 12nio, pp. Ex. Price $l. 
188. "ror pn il tuire for 1889, a a Year D. L. Adair, Editor. Louisville, 
vga ossi. Aust Sent. 0 Oct, i atonio. 
i ce lice ly, September, 
— Canada Y Kanra and voluit." LN Mon 

trea.. í 
TF ooe ry oj New York. Vol. ix, Nos. 5, 6, 7. March—May, 
; Entomologi T 1869, Paris. 
TES Tone Vie Kiis, ogiques. Voll. Bi-monthly. Nos1-7. July 1to Oct 1, 
Societe Imperiale d' Acclimat, tion. VI. Jan.to An » 189. Paris. 
wa Joel of Creole been 1i P, Pe. 1868, Philadelph os. 1-8. 
Science. atom 
$ Vol th Pt, a.” oet, 1869, London. ; i 



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