70 Scientific Intelligence. 
not er by any sufficient paleontological or stratigraphical 
evi 
The ‘Ons boniferous also: should have its three subdivisions, ee 
Culm —. the Carboniferous and Permian; an nd s 
also t 
soir is recommended for the a an olive 
rit for the Devonian, and brown for the Siluri 
(7) The term Series should be used for the higstingt subdivision, 
and Group for the third in grade. Group was ty for the 
higher at Bologna (see this J ape ae rip 151, 2). 
he committee considered also er points. a regards five 
shades of yellow for the Tertiary as more than be made dis- 
tinct, and recommends four. <A bright yellow is Peianincni ded for 
the Drif ft, or Diluvian deposits, and Pe same dotted for the — 
which “ne sont la plupart du temps que les formations marines 
ger patie i des dépéts eriatiues anciens, dits diinteensiees 
ou ns.’ 
ouping with reference to eruptive rocks proposed at 
Baloena i is objected to. 
ivision “ porphyritie rocks” is based, it states, only o 
mode of texture, while, in other cases, the reference i is to einneal 
nic fioka: is Stet to, it including teidhetic as wel: as , basaltic 
kinds. The Swiss committee proposes the two ni divisions 
of recent and ancient eruptive rocks; and, under these, the two 
groups of acidic and basic. For modern volcanic ea Whore the 
lavas are often of different kinds, variously mingled, a separate 
color is recommended. 
The five colors for the eruptive areas should be some tint of 
ed; and those proposed are earmine red for ancient acidic erup- 
tive; purplish red for ancient basic ; pends red for recent acidic ; 
and brownish red for recent basic ; minium red for modern erup- 
sary 
For the Archean’ the committee proposes three shades of rose; 
_ for the ist three of violet; the Rhetian to oolite, inclusive, blue; 
Cretaceous, green; in each case, the older of the subdivisions the 
deepest j in nga OF of color, and if there are four subdivisions in any 
case, pie dots for the lowest, in addition to the color. J. D. D. 
ulletin No. 3 of Princeton College Museum.—This num- 
ber of the 1 Hoe ge Bulletin contains the seeniee papers : Q) 
on Skull of the Eocene Rhinoceros, Orthocynodon, and the 
relations of thie Sa to other asebeae of the tons by Profes- 
sors W. B. Scorr and H. F. Ossorn; (2) on Achenodon, an 
Eocene Bunodene by H. F. Ossorn ; ” (3) ne pet oho on the 
Brain Casts of Tertiary Mammals, by Apam T. Bruce; on eat 
“eggpeinaae and rot don, — new Eocen < baphioaciee: = 
eee The last paper is finel huscnase fis plates V, V 
vit, vit (three of them folded), in lithography 
