442 The American Naturalist. 
[May, 
Oligocene. 
Organic matter. 
> 
A 
-g 
Oxide of iron. 
Phosphoric acid. 
Fluorine. 
Fluorine of apatite. 
Ratio. 
range, ming reddish bro n by calcination. 
Carbonate of lime and oe in gE quantities 
Tittle SUCK. csc iccsscvcevesen prinsi PEANT ET EEES 
. Halitherium schinzi from the tongrien de = 
g’ d'Etang-la-ville (Department of Seine-e 
n fr: —— shows porn we pak chestnut, its ase 
Pianina ay and re me after calci- 
nation. Cartonata of lim ong phn By quan tity, traces 
of rap at Httle gilio: sirsiran vasis 
. Ru mipan een from the ‘deposit of A vergr 
Gra yish-w rage density with a slightly 
tint by colette, Carbonate of lime and Shlovine i 
normal apg TH I OUPA ET A PANTS TOAN 
4. Rhin Bone from the de — it = ear 
ites of Quescy: sg pe tite zone is hard a mpact, 
violet = wos mixed ; with an interior zone, 1 porma 
red, w sti crystals of carbonate of lim 
terior OR analyzed. The powder was gray 
and took % bluish ‘tint oy daleidation.. fparker of 
lime abundant. races of chlorine, no silica 
5.90 
.erssss 
1.80 
36.70 | 3.26 
35.08 Pe 
3.12 
0.71 
0.20 
Average of the four samples from the Oligocene : 
LY eg oe acid, : À : : 
Fluo i rs 03 Ratio, 0.59. 
Dna ‘calculated for’ apatite, i : 
Ash 
Prats Eie 
Ea 
AE a ie ee 
g ack (2] g s © 
Eocene. 1 te) ELS bee 
RIETER” 
8- f $ 
Š £ S 
fa 
Paloplotherium codiciense. Pelvic bone from th 
dilaiive of Sundert (De ment of Aisne). Li it, 
easy to n becoming a gray yellow- 
ish with bluish tint hlor ition. Carbonate of lime 
abundant, li e OG RENTAS 3.06 | 0.70 | 31.10 | 2.45 | 2.77 | 0.88 
2C ne. ne of the head. 
Dense, black-brow S. besonaiay g reddish-brown by igni- 
tion. Notable hide of pyrites of eatin Bors 
and sulphate of lime with of cote PORE E 10.30 | 6.50 | 30.03 | 1.40 | 2.68| 0.52 
3. Anoplotherium commune. Me 1 from la De. 
Department of Vaucluse), ure show- 
ing mat, with a bl rown, studded with whi 
pa? temas tars brilliants of carbonate of lime. Is easil 
powdered when it becomes vole Prana me and by igni- 
nition passes to a gray-wh baobddelvcbapbiedcecivectistcskcvce! SLE 0.66 | 20.00 |: 2.98] 210) 0.76 
4. Paletherium he gig: Cubitus from the 
sum of Villette (Pa ws tones te 
low color; after ignition the powder beco 
eos ngewe A of mut cae of lime, a little He auphete 
traces o an MA I BE SOENE MEAS E EAE FOSA 8.67 | 0.80 | 33.70 | 2.05| 3.01| 0.68 
E kona: sor 7 gypsum of Paris ‘(the low- 
in “ape Tyr , Orange color, becom- 
pie ite tgntion, Gal a of Pohang of lime, po 
bie ayant iby of sulphate 
7.80 | 0.90 | 27.26 | 1.64| 2.43 |* 0.67 
