From the Institute for Pharmacology and Physiological 
Chemistry at Rostock i. M. 
Contributions 
to 
the knowledge of the pharmacological and physio- 
logico-chemical behaviour of some volatile substances 
by 
Hans Kleist. 
1. Anthranilic acid as a sodium salt. 
2. Acetyl compound of methyl ester of anthranilic acid. 
3. Methyl ester of methyl anthranilic acid as a sulphate salt. 
4. Acetyl compound of methyl ester of methyl anthranilic acid. 
5. Piperonal. 
