1395.] Fluorine as a Test for the Fossilization of Animal Bones. 441 
Ash 
Sjal? E 
3 S Š 3 = : 
a ~ 9 I 5 a 
Pliocene. E hte Se. Z 
3 © £ E z z] 
TiS RIES 
p gizi sg 
5 a S 
ia 
Halitherium. Bone from the deposit of payee a 
ville (aranana, Dense, color blackish, becoming gray 
ae TT a a 10:62 sind: 30,40 | 2.51 | 2.71} 0.93 
2. El iha 6B: sag Durfort (Gard). Red- 
dish-gray, Becoming gi calcination. Slight 
gain of carbonate of lime, ittle Ke chlorine, with slight 
poete eee Osh E aaa ei et eae T Bras inh 16,80) list 36,84 | 0.88] 3.29) 0.27 
Pa Elehias m meridionalis, Tusk from the Sie 
(Eure-et lunien ..... [ania oe 38,40 | 211| 3.42) 0.62 
Average of the three Pliocene AOp 
Phosphoric acid, T 21 
Fluorine, ; ; ‘ 
Fluorine caleuled for apatite, 
'83 
ar } Ratio, 0.58. 
Ash 
g : s 
3 g kzi 3 
aien eee 
: =| A g s 
Miocene. a s a a w s 
aisi2 a es 
R Air Eigi? 
© | S 
z E 
Py Sein ht oe Tusk from the Orleans speedo 
Dense, enre y, becomin jue-green 
iA aw. scot Gain of en carbonate of l om PEE 
chlorine PEA Snipa joe” 80 | 1.50 | 38.07 | 2.66 | 3.40) 0.78 
M tak froi he deposit of Sansan (Depa: l 
ment of Gass). g tied When broken owed 
white bln oe veins, becoming bluish iy Br — 
tion. carbonate of lime 
be le 8 CETE U O acs E 7,50 | 0.85 | 36.40 | 2.59 | 3.25 | 0.80 
3. bi oan tusk very co chestnut color 
T en bite t tint a r calcination ...| ....... 075 | 39.80 | 2.36 | 3.55; 066 
Pa anghen si paai- ——— e e calcaire of 
orre (/anghien . range color, passing to 
reddish-bro by Wii or e carbonate of 
tae, chlorine ia KORDA quantity e silica. veel (G.6B-| -cecenes 34.73 | 2.80; 3.10! 0.90 
Gazelle horn from the recto Bp oe sit of Mont- 
Lakers (Department of plae a An Yellowish-white, 
becoming bluish by ignition. Much carbonate of lime, 
Froes of chlorine, n: silica. SE seesoreescee| 6.70} 1.93 | 15.54) 0.78] 1.38) 0.57 
feat ion. Radius fro m the same deposit as Ño, 
5.3 wish-white which ih changes not b 
Sli a g in of carbonate of lime, traces 0 ioe Tine... 7.54| 0.96 | 37.90| 0.90! 3.38] 027 
. Hipparion from Pikermi (Greece). Yellowish- 
white sagata g after ignition; carbonate of lime 
ndant. 8.54 | 0.90 | 34.26 | 0.93 | 3.06; 0.31 
— Average of the seven Miocene powers 
Phosphoric acid, : ri se 
uorine, on o 
Binpane. calculated for apatite, 
30 
` 02 6s Ratio, 0.61. 
