. 1946;40(5-6):627–628.
Protocatechuic acid, the substance responsible for the hardening of the cockroach ootheca
M G M Pryor
1, P B Russell
1, A R Todd
1
M G M Pryor
1Entomology Department, Zoological Laboratory, and University Chemical Laboratory, Cambridge
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P B Russell
1Entomology Department, Zoological Laboratory, and University Chemical Laboratory, Cambridge
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A R Todd
1Entomology Department, Zoological Laboratory, and University Chemical Laboratory, Cambridge
Find articles by A R Todd
1Entomology Department, Zoological Laboratory, and University Chemical Laboratory, Cambridge
PMCID: PMC1270017 PMID: 16748064