364 ZOOLOGY 



3. Where is the ear-drum? 



4. ( This may best be studied on the living animal.} Is there a nicti- 

 tating membrane, as in birds? 



OBSERVATIONS ON THE LIVING ANIMAL 

 Each student should be provided with a set of Bradley's color cards. 



1. Which eyelid is more used in winking, the upper or the lower ? 



2. Locomotion : Order of movement of legs ; correlation of leg and 

 tail movement. 



3. Change of color : Effect of colored backgrounds (Bradley's 

 colors 1 ), of warming by holding in the hand, of stroking the back. 



TOPICS FOR FURTHER STUDY 



1. Habitat, food, and distribution of Anolis. 2. Common lizards of 

 the region, if any. 3. Other interesting lizards, such as the chameleon, 

 the blind worm (Anguis), the Gila monster (Heloderma), lizards of 

 Europe (LacQrta), fossil Reptilia. 



XIX. "ENGLISH" SPARROW (Passer domesticus) 



This introduced bird can be obtained in most large cities in sufficient 

 numbers. Recently killed birds are the most favorable for laboratory 

 work. Subjection to fumes of carbon disulphide is a useful precau- 

 tion against bird lice. 



DRAWINGS 



1. Side view (left). Name parts. Natural size. 



2. Head and bill, side view, mouth open, showing tongue, x 2. 



3. Foot (left), dorsal surface, x 2. 



4. Foot (left), palmar surface, x 2. 



5. Contour feather (from tail), x 2. 



6. Plumage feather, x 3. 



7. The egg. x 2. 



QUESTIONS ON EXTERNAL ANATOMY 



1. Color of : (a) eye ; (6) bill; (c) feet ; (d) throat; (e) breast; 

 (/) belly ; (#) crest ; (//) side of head ; (i) back ; (&) wing ; (/) rump ; 

 (m) tail feathers ? 



1 Milton Bradley Company, Springfield, Mass. 



