Auriferous Gravels of the Sierra JVevada. — Turner. 377 
leaf beds, but the writer's recollection is that in the latter 
case the series is, without doubt, conformable. 
The following partial analysis of the fine white material 
containing the fossil leaves at Corral Hollow was made by- 
Messrs. Steiger and Stokes, of the U. S. Geological Survey. The 
analysis does not appear to suggest with any certainty the 
nature and source of the material, but is given here in order 
to have it on record: 
iVb. 449 Sierra Nevada Collection. 
Si O2 63.07 P2 O5 .24 
AI2 O3 17.02 K2 O 1.53 
Fez U3 3.90 Naa O 3.83 
Fee O2 1.08 
If considered as fine grained tulf, the material is evidently 
of andesitic origin. 
Another locality where Miocene shells are associated with 
beds containing fossil wood is on Ocoya creek. A third local- 
ity is that already mentioned in tiie Marysville buttes, where 
Mr. Lindgren found marine shells in what he considers the 
lone formation, and in the same deposits are plant remains. 
The following reports by Prof. F. H. Knowlton give inform- 
ation about the fossil flora of the Sierra Nevada additional to 
that in print: 
Report on .tmall collection of Fo.ml Plants from Poverty Hill and Monte 
Cri.'ito mine on Spanish Peak, California, submitted by II. W. Ihirner, 
January 31, 1S95. 
Monte Cristo Mine on Spanish Peak. ■ 
This material consists of small fragments. None of tiie leaves are 
preserved entire, the best consisting of the basal portion only. These 
leaves all belong to a single species, Laurus salicifolia Lx., (Cf. Cret. and 
Tert. Fl., p. 2.')2, pi. LVIII, figs. 4. 5.) This species was originall}- de- 
scribed from Corral Hollow and has not before been delected at the 
Monte Cristo mine, as far as I know. 
Poi-erty Hill. 
This material consists of a single piece of matrix on which are frag- 
ments of small dicotyledonous leaves. None of tliem are sutticiently 
well f)reserved to admit of satisfactory determination. They seem to 
belong to the Cupuliferie, hut beyond this it is impossible to venture. 
Report on small collrrtion <f Fossil Leares from Vulcano Hill, Placer Co., 
California Sent for e.vamination by II. W. Turner. 
This collection consists of about seven small fragments of matrix. A 
considerable number of fragments of leaves are i)resent, but luifortii- 
nately not a single leaf is jx-rfect, and consecpiently the dt'trrminations 
