322 Scientific Intelligence. 
common to both according to Gabb, of which several may be dis- 
tinct. On the other hand, many of the Tejon group are scarcely 
distinguiehatic. from Tertiary = living forms. One, Aturia 
Mathewsonii, is so near the Eocene A. zigzag, as om have been 
taken for it, no other Cretaceous Abivia being know 
I may add that the ammonite (A. jugalis Gabb) + be found by 
me in a stratum just beneath the Mt. Diablo coal, and apparently 
on the same level as those from Clayton and “ Curry’s,” Postid by 
Gabb, so that its existence above the Coal, or in the Tejon group 
itself, is perhaps accidental. But, to pass by this doubtful fact, we 
have still later strata, referred to ‘the Eocene by Conrad, near "the 
mouth of the Columbia, where we would expect the first Tertiary 
to rise near the surface, and this time the Eocene Aturia zigzag 
ue zi is so 
to sosenate any Eocene here, that he calls the formation Miocene. 
neral character of these ‘fossils, of which there are me dint in 
the eadent ’s Museum, shows, however, that they are of am 
tropical growth than any of our Miocene cjckia the Aturia itself 
being very similar to the Nautili now living in the tropics. 
Though perhaps mixed with ices species among the broken 
rocks so numerous on the lower Columbia shores, it is most proba- 
ble that true Eocene strata exist there, and, as shown by 
Academy’s specimens, extend south nearly to California, where 
later strata cover them. From all we yet know, we may assume 
that the gap between the Cretaceous and Tertiary, so marked on 
the Atlantic shores, was bridged over in part by the sain’ 
he “Tejon of mo 
there, or the earlier part of it, just as we find the flora and fauna 
of Australia resembling forms fossil in the Eocene formation of 
Europe, 
Eocene mollusca appearin ale just preceding the Miocene, 
—, me those of the Atlantic 
sil Tertiary Insects of Cubeiel, British Columbia.—Mr. 
S. 1 ‘Rovpone has described, in the Canada Geological Report 
for 1875-76, the “emrtitomg Columbian ape go sp — ed insects. 
Hyunoprers: Formica arcaria Pimp. asian: necta, Ca- 
lyptites (n. gen.) untedibuvianer. Dieters: ‘Boletina sepulta, 
Brachypeza abita, B. procera, Trichonta Dawsoni, Anthomyia in- 
animata, A. Burgessi, etehien ia senilis, Seciomyza revelata, Ti- 
deintegned (0 — ) picta, Lonchea senescens, Palloptera morticina. 
Cot Prometopia depilis. EMIPTERA: the Aphid, 
nus popermitin with mention of an imperfect satiate of a 
Mente ~ 
he first discovered traces of Fossil Insects in American 
Tortiarivs, and on new Carabide ipo ve interglacial “Hi Soup of 
Searborough 
