Chemistry and Physics. 67 
ing a true benzene ring; and second because from this mode of 
formation it is clear that in salicylic acid the hydroxyl and the 
carboxyl groups aad the para position.— Ber. 
Ges., x, 646, April, 1 G. F. B. 
7. On the x Sasa of Coumarin, and of Cinnamic and 
other analogous acids, — PERKIN, who synthesized coumarin 
C,H, CO ° several years ago, now finds that this substance is 
readily produced when a hydride is boiled with acetic oxide 
and sodium acetate. He was thus led to try other aldehydes in 
the same way. On bo cling benzoic aldehyde with acetic oxide 
and sodium acetate for a day, a considerable quan sig v# an acid 
was obtained which on examination proved to be cinnamic or 
ordain bioe acid C,H,.CH.CH.COOH. — Usi i "propionic 
xide and sodium epee the product of the reaction was 
C 
phenyl-crotonic acid, *” From butyric acid and 
OH) 
sodium we was obtained phenyl-angelie acid, 
CH 2(C,H,.C sips 
CO(OH) 
sodium succinate, isophenyl-crotonic acid. From cuminic alde- 
hyde, acetic oxide and sodium acetate, cumenyl-acrylic or isopro- 
From benzoic aldehyde, succinic acid and 
acid, Ad Saar oxide gave cinnamenylcrotonic acid, and butyric 
oxide e cinnamenylangelic acid. “Avice aldeh yde pid oe Ma 
paroxyphenylacrylic, niga pe NEES lee ah ape and m ee 
oxyphenylangelic acide, hen thus treated. Met ea nabe ii alde- 
hyde gave methylort dey henylacrylic, methylorthoxyphenylcro- 
m8, a arses dig onptensangee acids.— J. Chem. ta ag 
ey 877. 
furfurol is treated with a few drops of h hydrochloric acid and 
warmed, a splendid arpleviolt re or is Wagalépedt paid Fe rl. - 
Chem . Ges ce gE iB. 
ise Notes Won the Chemioat Laboratory of the Johns “Hopkins 
ow Nos. 1, 2,3. 16 pp. 8vo: Baltimore, May, 1877.— 
€ Papers here included are: Oxidation of Mesitylene-sulphonic 
— by L. B. Hart and Professor REMSEN ; on the oxidation o 
. Sulphoacids derived from metaxylene, by M. W. Ines and 
€ssor Remsen; on isomeric nitrotoluenesulphonic acids from 
Paranitrotoluene, by E. Harr and Professor Remsen. 
