In another letter Dr. Lauder Brunton mentions that an active principle of the toad venom is probably of an alkaloidal nature.

A study using a 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging experiment found that the CH 2 Cl 2 fraction of F. suspensa exerted the strongest scavenging activity and suggested that forsythialan A and phillygenin F are the major antioxidant constituents [ 51, 52 ].

I couldn't see the traffic light because the sun was in my eyes.

[…] lasted for centuries in Indic and Hellenic (in Iranian the sigmatic categories were ultimately degrammatized from phonology by the fricative weakening (s > h > Ø); in Baltic there are no traces of the sigmatic Aorist, […]