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Contents. 
PSR, Page 
Iatroduction ~. 5°). . + «oat 5 
Commercial notes And Scientitic information on execatial oN MPM) 
New essential oils. . . . oe PN ee oe. a) res 
Chemical Preparations and rues be Se by glee oe rr 
Notes on recent research work i 
General <6. we eo SE a ee rr 
Bibliography «owe ea ee ee be a 2 rr 
Analytical (20 eg lend oe ON ye rr 
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Shenae piysmloniaal ws Pea bb a. rr 
Phyto-physiological . 0.0. er ee a Orr 
Chemical 2201.00 sc ee 5 ee Pe ai ee errr 
Hydfocarbons | hs. bs ee ee, rk 
Alcohols «.. 2 0 oe Be SR a BS 
Aldehydes Ss 0. 8a ee we rr 
Ketones .. . epee a aie 0 es 
Phenols and Phenol ethers i 
PNCIAS wis oe see og es gl SOE oa See ous Ba UM ce 
Nitrogenous Bodies we a TEES At be ew el rr 
an ie List of abbreviations. 
d = specific gravity. 
deoo = Specific gravity at 20° (in references from our laboratories uniformly compared 
with water at 15°). 
—d®° = specific gravity at 20°, compared with water at 4°. 
A2py0 = Optical rotation at 20°, in a 100 mm. tube. 
[«]p = specific rotation. 
Hpuc) += index of-refraction at 20°: 
Sol. p. = solidifying point. 
M. p. = melting point. 
B. p. = boiling point. 
n = normal. 
acet. = acetylation. 
Acid v.= acid value; ester v. = ester value; sap. v. = saponification value 
g. = gram; cc. cubic centimeter; mm. = millimeter. 
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Temperatures are uniformly given in degrees Centigrade. 
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The strength of alcohol, if not otherwise‘ indicated, is given in per cent. by vbiaees 
