Members in Spiders and Insects. 423 



been cast, the other retained — the tarsus was spht in crush- 

 ing, and the extremity has either been pulled or sloughed 

 off. 



10. Retained portion of tarsus sound, and just as after a clean 



amputation. Another tibia crushed — the skin broken and 

 fluid oozing, &c. 



11. Cast at the suture. 



16. The tibia crushed on the 30th of July, and tarsus on the 31st. 



are as sound and healthy as before. 



18. Disappeared. 



N. B. The above were in a garden, and at liberty. The following, 



as well as all those referred to in ray former paper, were in confinement 



either in cages, jars, or bottles. 



4. 



Aug. 3. Epeira ? Femur crushed — skin broken, &c. 



4. Cast. 



5. 



Aug. 6. Aranea domestica. — Tibia crushed — skin broken, &c. 



7. Cast. — Another crushed — skin not broken. 



8. Ditto. 



1 4. Another tibia crushed slightly, and in one place only. 



17. Cannot be distinguished from the rest. — Another crushed — 



skin broken, &c. 

 18. Cast. That injured on the 14th quite recovered. 



I could multiply examples, but the object is not of sufficient conse- 

 quence to require it ; in all the instances with hunters (none are given in 

 consequence of their uniformity) a crushed limb was thrown off at the 

 suture, and generally either immediately after, or within an hour or two ; 

 with the web-makers some delay (hesitation ?) took place. A crushed 

 limb is never thrown off while that operation is going on, because the 

 necessary confinement of both the body and limb of the animal prevents 

 this action from taking place. In amputation, by the mode in which I 

 effected it, it is different : if it be not very quickly performed, it aftbrds a 

 sufficient fulcrum for the muscles to act upon, the body and remaining 



