ÖFVERSIGT AF K. VETBNSK.-AKAD. FÖRHANDLINGAR 1899, N:0 10. 983 



glowing coals and finds that it cannot escape it will kill itself 

 hy its sting.» For the purpose of experimentally disproving 

 this story a great number of living scorpions were coUected. On 

 a. layer of sand a ring of glowing coals was.laid. The tempera- 

 ture within this ring varied from + 55° C. to + 75° C. When 

 a scorpion approached the coals it felt uncomfortable and begun 

 to whip with its tail against an imaginary foe (it is then be- 

 lieved it tries to commit suicide), till it was overcome by heat 

 and died. This experiment was made with more than thirty 

 scorpions one after the other without the slightest suspicion of 

 •one scorpion kuling itself. 



When the Buthus is digging in the sand it uses, uniike 

 Galeodes, the three anterior pairs of legs which are rapidly 

 moved, and rests on the fourth. 



