MANUAI, OF NATURE STUDY. 119 



B. — Physiology. 



* (For winter study, at least when not seasonable 

 for plant study.) 



1. Bones. — a. Names and groups, b. Forms 

 and economy of structure, c. Uses. d. Obser- 

 vation of real bones. 



2. [oints. — a. Kinds and movements, b. Liga- 

 ments and attachments, c. Uses. d. Observation 

 of action of joints. 



3. Muscles. — a. Forms and structure, b. Ten- 

 dons and attachments, c. Uses. d. Observation 

 of action of muscles, e. Exercise and its relation 

 to muscular development. 



4. Respiration. — a. Organs ; name, form, struc- 

 ture and purpose of each. b. Processes; inhala- 

 tion and exhalation, c. Purpose of respiration. 

 d. Observation of action of respiratory organs, e. 

 Ventilation and breathing. 



See any S^ool Physiology on these subjects. 

 The outline is deemed sufficiently elaborate for any 

 teacher. 



C— Weather Study. 



Weather, record of preceding grade continued, 

 noting thermometer, barometer, winds, clouds, 

 rainfall, snow, hail, dew, and frost. (See outline 

 for fourth year.) 



