- 11 - BUFO. 



15. General Viscera. Pin out the toad on its back and cut through the body-wall 

 parallel to the anterior abdominal vein, continuing the cut forward through the pectoral 

 girdle. Tie two ligatures round this vein near its entrance into the liver and cut between 

 them. Pin out the flaps to right and left. Insert a blowpipe through the glottis and 

 inflate the lungs. Make a drawing to show : heart ; lungs ; liver and gall-bladder ; 

 stomach ; small intestine ; rectum ; mesentery ; pancreas ; hepato-pancreatic duct ; 

 spleen ; kidneys ; genital organs ; fat bodies ; bladder. 



