

392 CORRESPONDENCE. 
The eggs were nearly ready to hatch, and I could not save but 
ro 
they had the bill and feet of a Sialia. It is a variation entirely new to 
me, although I have seen hundreds of bluebirds' eggs. I have no doubt 
whatever of its identity. 
I also have another egg in my collection which is a nondescript. It is is 
l7% inches long, of a very light bluish-green, sprinkled all over with 
grains of light brown and many other obscure specks; globular. It was 
ina BAER ar cii sinc which had besides its full canrpleraat of eggs, 
am confident that it is a parasitic egg, though manifestly not a cow-bun- 
ting’s. ERNEST INGERSOLL, Oberlin, Ohio. 

GEOLOGY. 
New Species or Foss. Horse In Mexico.—Prof. R. Owen has de- 
scribed the teeth belonging to an extinct horse, found in the newer 
ic 
i agessiadors! of South America, an se.the nomad ae 
€ of the multitudinous progeny of those war horses at the present 
day, that any such tama quine should have been killed off or extir- 
dens), and its Me the Equus Tau Owen (from the same locality), and 
Equus curvidens, etc., and also the Megatherium, Mylodon, Toxodon, Ne- 
sodon, Macrauchenia, Glyptodon, and Mastodon, were Sandared extinct 
_ by human means. — Scientific Opinion, London. 
— 909——— 
ANSWERS TO CORRESPONDENTS. 
F. W. G., artenn N.Y. Y.—The galls from the rose are probably those of Cynips 
bicolor Harris. h tenanted by the 1 f a Chalcid parasite 

t MÀ 
ERRATA. 
Page 215, line 14 from ‘below, for arms, read areus. Page 216, line 25 from below, for 
read opercula; line 12 from below, read between A 18, and Decem- 
ber 11; line 12 from below, for Lindguist’s, read Lindqvist. Page 217, mS 
below, for > Durir, read Dunér, and for Nordenskjold, read Nordenskjóid ; line 7 from 
Up ( . Sti, 
read Térnkvist ; line 5 from above, 
itic ; line 16 from onere pe geese 
Hjelt. Page 221, line 6 from above, for 


. 
NM nae ae Fh EATE E E T a ESE 
D SENEE IS EE S Ge 
below, for : line 
line 15, from e o es Whale, read read Malms’ Whale; "^ 
F ljelt, read 
131r ides Dart E Si ara NS a. e E EE 

d 

