Se oa eee gS ae ae 
Pe 
ee eee a Os en eee ae ee ee ee ae en NT an amet ye) Ne Bee eo ReS 
Mineralogy and Geology. 117 
and some months before said announcement was printed. (See London 
Mining and Smelting pcre Oct. 1864, pp. 215-217). 
Awd; furthermore, the conclusions were reiterated in the preface to the 
Paleontology (vol. i, p. 18) w which was issued in Dee. 1864, the same 
species of fossils of the age under consideration, more than half of 
which had been found in California in the rocks associated with gold. 
Many of the plates and descriptions of these fossils had been prepared 
more than a year before this, or in 1 
Prof. Blake adds: 
et to observe that in this publication (Whitney’s Geology of ae 
fornia), as well as Mr. roe notice of the fossils, no mention is made o 
previous announcement, and that my part in the discov ery and publication of 
the Secondary age of the Mariposa gold rocks is studiously and wholly 
ignored.” (Foot -note to +) 
While the fanialage: quoted only strictly claims a part in the “ dis- 
covery and publication of the Secondary age of the Mariposa gold 
rocks,” yet any person not acquainted with the facts, and not examining 
t tes of the original discoveries and publications, would draw 
inference from the connection in which the statement stands, that Prof. 
Bla e had been the first to discover and announce the. > Ke of these 
fossils, and Prof. Whiting three months in publishing the conclusions. 
Nor could Prof, Blake have been ignorant of this, for he had all the 
The article under review being an official Report published by the State 
Board of Agriculture inthe Transactions of the State Agricultural 
Society, as well as in pamphlet form, is intended to reach the more in- 
telligent siprire of the } ple of that an to diftuse reliable informa- 
ns 
ment of the ots = of the great or belt of the State, and ae 
Sta ignored 
part in the discovery and publication of the age of the gold rocks” 
had occurred so long after the discovery and publication of the fact by 
cad ace ‘ 
For the information of those interested in the question, I will here 
state that I n California during the period of the discoveries under 
Sana ech a collected a part of the fossils in the ion of the 
State Geological Survey, and was acquainted with the localities and 
dates. I was present at the meeting of the California Academy, Oct. Pe 
1864, when Prof, Blake exhibited his Mariposa fossils and made his so- 
