48 BULLETIN 305, U. S. DEPARTMENT OF AGRICULTURE. 
Geography: From what locations were the trees for the school 
ground secured? Did they grow on upland or lowland? Do they 
require much or little moisture ? 
Arithmetic: Develop problems on the cost of trees planted in the 
school yard. 
ANIMALS. 
Continued work.—Continue the studies with the special bird group. 
Note the coming and going of members of the group, their methods of 
securing food, the places frequented, and whether they are found in 
flocks or alone. 
Do any members of the special group of mammals come out of 
winter quarters this month? The woodchuck or groundhog? The 
chipmunk or ground squirrel ? 
Assigned work.—Pupils in the extreme southern part of the country 
should look for the citrus white fly. It is found on the plants of citrus 
fruit, cape jessamine, and privet. The insect is in the pupa or dor- 
mant stage. It is oval in shape, has a thin light-green case, and is 
found under edges of bark. Have pupils secure specimens and bring 
them to school for study and identification. Store some in a bottle 
and note developments. 
By following turnplows this month white grubs, cutworms, and 
beetles may befound. Pullloose bark away from stumps im fields and 
collect sects found there. Study to identify them. Send those 
that can not be identified to the State agricultural college, with the 
request that the name and the helpful or harmful characters be 
furnished. (See Farmers’ Bul. 606.) 
Have pupils examine seed Irish potatoes for scale and blight. The 
blight is mdicated by the presence of brown, sunken spots on the skin 
extending into the flesh of the tuber. Affected seed should either be 
discarded or treated with formalin solution before being planted. 
Practical work.—Take notes on observations with birds and mam- 
mals and copy them in the class notebook. Collect, identify, mount, 
and label insects as suggested in the foregoing studies. (See Farmers’ 
Bul. 606.) 
Correlations.—Language: Have all the members of the class write 
letters to the State experiment station with reference to insects bemg 
sent for identification. Select the best one and mail it. 
Drawing: Make drawings and label the insects studied this month. 
Reading: Have the class read selections from Farmers’ Bul. 606. 
History and geography: What connection has the Baltimore oriole 
with American history? Who was Lord Baltimore? Where did he 
settle? Why did he come to America? What are the colors of the 
oriole? What were Lord Baltimore’s colors? Does this fact account 
for the name of the bird? 
