IV] 



Bock's Herbal 



57 



remarkable characteristics. His chapters on Verbena and 

 Artemisia reflect clearly the independence of his thought. 



T)t Tnhulo a^uatico* 

 Waffetnti$, 



Text-fig. 29. "Tribulus a.qua.ticas "= Trapa natans h., 

 Bull-nut [Bock, De stirpium, 1552]. 



He points out that the former plant is collected rather for 

 purposes of magic than for medicine, and he can hardly 



