MANUAL 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. Joints .— 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 School 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.) 
