46 



EXPERIMENTAL PHARMACOLOGY 



Fig. 28. Turtle board, made of cheap, scrap, pine lumber Cold goods boxes). A 

 hooked wire (sharpened), is attached to the front end. The hook catches in the lower 

 jaw ("chin") of the turtle. The feet are tied out tightly to the staples. 



Fig. 29. Specimen jar. 



Fig. 30. Upper picture, burette clamp; lower picture, double clamp (Harvard). 



