PLAN OF THE COURSE AS A WIIDIJ' 9 



Deserted Mids' nests for study of uesting sites, and aiialy5.is ui nuiLe- 

 rials. Attach a label to each nest, statiuft- locality and ]>ositi()n. kind of 

 tree, distance from ground, et<*. 



Fresh-water clams and snails, with duckweed, miliuil, stoui'wort. 

 and other aquatic plants common to the locality, for use in stockini; 

 aquaria during the winter. 



Fronds of all the common ferns, fruiting and sterile, 'i'hese should 

 be pressed between sheets of paper and pr<^served dry. 



The ants' nests must be stocked as early as jiossible, and may br 

 maintained through the winter. 



It is not advi.sable to try to keep frogs, salamanders, newts, turtles, 

 snakes, or many fishes in the laboratory during the winter, since their 

 normal period of hibernation will be interfered with and they ai-e not 

 likely to do well. These may all be collected and .studied to betU'r 

 adyantage in the spring. 



III general, the order of elia[)tei'S follows that hidicatt'd 

 above: insects and birds with beginning plant lessons in the 

 fall; fungi, bacteria, and animal parasites for nidoor work 

 durmg the whiter; fishes and amphibia in early spring; and 

 the emphasis on plants with the completion of bird and in.sect 

 studies in the later s})ring months. A natural eoncdusion of 

 the course is supplied by a brief statement of the principles 

 and laws of life with an outlook toward the l)iological organ- 

 ization of the nation. At best, with so many interests weav- 

 ing a continuous pattern through the changhig life of the year, 

 the text will need to be used as a reference book rather than 

 as a series of consecutive lesson.s. 



