ZOOLOGY. 



1. Digestive Organs. Pressing the liver aside, identify 

 the following parts of the digestive tube : oesophagus, stomach, 

 small intestine, large intestine. Are there any sharp bound- 

 aries between these parts? 



Compare the lengths of the different portions. Find the 

 mesentery, and show its relation to the intestines. What is 

 the relation of the liver to the digestive tube? Find the gall- 

 bladder: does it have any duct leading to the tube? What is 

 the position of the light colored pancreas? Of the darker 

 spleen (this organ has no duct) ? 



Cut the large intestine about an inch from the anal open- 

 ing and the oesophagus in front of the stomach ; remove the 

 tract from the body. Split it from end to end, wash it of its 

 contents and describe and make drawings of the interior. Do 

 you find any internal parasites ? 



2. Urino genital Organs. Without removing any other 

 organs identify: 



The kidneys : color, form, position. Do they have any 



outlet? The bladder; position and general structure. 

 The fat bodies : position ? With what connected ? 

 In the male : 



Testes; yellowish, rounded bodies. With what organ 



connected ? 

 How in a fresh specimen can you be sure you have 



found the testes ? 

 In the female : 



Ovaries, which vary much in size and appearance with 

 the time of year. What are their position and at- 

 . tachments? 



Oviducts. Do these communicate with the body- 

 cavity ? How do they communicate with the exterior ? 

 Is there any trace of the oviducts in the male? 

 3. The Lungs. Open the mouth, find the glottis, insert a 

 blow-pipe, and inflate the lungs : number, position and shape ? 

 Cut them open and examine the inner surface. 

 4. The Circulatory System. 



