1272 General Notes. [ December, 
gneiss, schists, argillites, slates, etc., and the contracted areas of 
mountain limestone and trias, M. Marcou comes to the band of 
fossiliferous Infra-lias, or Rhetian, which for more than a hundred 
miles exists in close contact with non-fossiliferous talcose or 
chloritic schists, quartzites, etc., and often in proximity to ie 3 
veins of auriferous quartz. Here he capitalizes the words, “The 
gold is not Jurassic, but of the age of azoic rocks and of the 
most ancient graywackes.” The metalliferous veins are never en- 
closed in the Rhetian, the close proximity of which to the gold- 
bearing quartz was the cause of the announcement, “ made with 
much solemnity, that the gold of California was much more re- 
cent than had been believed, and that the Sierra Nevada and the 
greater part of the other sierras of the Great Basin were of the — | 
Rep ee E eee et eee 
of Shasta City, he arrives at the Tertiary, commencing with t'i : 
statement that there is no trace of Tertiary rock i 
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mountains be- 
tween Los Angeles, Point Conception and the neighborh in 
coast, as shown at Los Angeies and San, Di ie . Marcot a 
me s; M. Marco” | 
the vertebrate remains of the Rancho de rails’ foul of Professor 
Quaternary : 
his savant, there was 10 > S pehas 
stratigraphical and paleontological characters, J. 
done before for the Eocene of Chico in making 1t 
