CHEMICAL CONSTITUTION ETC. OF ESSENTIAL OILS. 17 
Taste I1.—Showing how many per cent. of the Teeth found in the Cave- 
earth, in different branches of the Cavern, belonged to the different 
kinds of Mammals, 
| 
South | North Smer- Slop- Cave , Char- | Long Under- 
Sally- | Sally- | 4on's | ing |Wolf's| oe Ro.| coal | Ar- | bay's 
port. | port. | Pas- |Cham-| Cave. |dentia,| Cave. | cade. | Gal- 
sage. | ber. | lery. 
tiveng ...... 27 | 31 |438 39 | 44:5) 44 | 29:5} 41°5 | 65 
arse... . 29°) 31 27 28°5| 25 | 28 | 383 | 21 | 23-5 
Rhinoceros....| 11 | 16 {15 14 | 15 9:°5/ 10°5| 9 4:25 
wees. es 8 1 2 2-5| 3 3 3:°5| 14:5| 
pEeep tT... .. Z Cae " 5) “oO bie ae 
Badger ...... 3 4 rs | ae or os 6 Bi : 
EEE eer ccss a» « 3 5| 1:5 : * * | 12 4:5| 4:25 
Mabbit... ss... 3 2 oes. 5 ; “fs - oH 
Elephant 2 2 ia Wa SL a 3 a ls 2 ae 
Mee Ts... ts 2 6 i S73.|—" 55). S5|) .. 3 a 
meee. ak 2 2 a gl i a: 6 1 * 
ae Se 1 5| 3 2 i 2 i ag 
es... 5 gd ie 2 i * 2°5 * 
alec D 3) : rs Bre 
1 0 (0) Ran tea 5 *25) x : 1 
aun eeee 5 5 25 
Heaver ...... dip id ee Ag 
ae Sif aa ge ae He iy dp oe 
Machairodus ..| .. aa ig: =: ie as bie * 
No trace of Machairodus has been met with since the Eighth Report (1872) 
was presented. 
Report of the Committee, consisting of Dr. Guapstons, Dr. C. R. A. 
Wricnt, and W. Cuannier Roserts, appointed for the purpose of 
investigating the Chemical Constitution and Optical Properties of 
Essential Oils. Drawn up by Dr. Wricut. 
Smycr the last Meeting of the Association the following results have been 
obtained :-— 
I. Or or Wormwoop (Artemisia Absinthium, L.).—By fractional distilla- 
tion, a sample of pure oil obtained from Dr. 8. Piesse was split up into :—(1) 
A terpene boiling at about 150°, and constituting about 1 per cent. of the oil. 
(2) A smaller quantity of hydrocarbon, probably a terpene, boiling between 
170° and 180°. (83) An oxidized product, the absinthol of Gladstone, indi- 
eated by the formula C,,H,,0, and hence isomeric with camphor, boiling at 
200°—201° (corrected): this product was first obtained by Leblanc, and stated 
by him to boil at 204°; Gladstone found the boiling-point to be 217°; whilst 
+ There is reason to believe that the remains of Sheep found in the Cave-earth had been 
introduced in comparatively recent times by burrowing Carnivores. 
+ The “Trish Elk,” Reindeer, Red Deer, &e. are all included under the general name 
“Deer.” The asterisks in the Table denote that only 1 tooth was found, 
1874, Cc 
