52 PHYSIOLOGICAL PROCESSES IN PLANTS 



Special Reports 



1. The work of Luther Burbank. 



2. The spread of the Russian thistle. 



3. The spread of the wild lettuce. 



4. Weeds that have been imported, and how they were brought here. 



5. The struggle of plants for existence. 



6. The economic value of fruits. 



7. The part taken by Indian corn in the development of America. 



8. The wheat crop as an index to a country's prosperity. 

 9- The various uses of fruits. 



10. Boards of Trade and their work. 



11. Cotton and its part in the development of the United States. 



References 



Hunter, Essentials of Biology. Chap. V. 



Osterhout, Experiments with Plants. Chap. VII. 



Hodge, Nature Study and Life. 



Rusby, "Wild Foods of November." Country Life in America, 

 November, 1900. 



- "Wild Foods of the U. S. for September." Country Life 

 in America, October, 1906. 



Dickson, Harris, "Dethroning King Cotton." Saturday Evening Post, 

 July 2, 1910. 



Beal, Seed Dispersal. 



Walton, Practical Guide to the Wild Flowers and Fruits. 



Boynton, "Seeds Stealing a Ride." Nature Study Leaflet,~No. 4, 

 October, 1909. Cornell Univ. 



"Seed Dispersal," Home Nature Study Course, Cornell Univ., No. 1, 

 October, 1904. 



Thompson, " F, merge ncy Foods in the Northern Forest." Country 

 Life in America, September, 1904, p. 438. 



PROBLEM IX 



The economic valvue of some fruits*- 



Method. Collect as many different kinds of fruits as possible, 

 orchard fruits, garden fruits, etc., as berries, beans, pumpkin, 



1 The pupils should be encouraged to bring pertinent newspaper or maga- 

 zine articles to class. These may be pasted in a proper notebook and indexed. 

 It is also wise to catalogue all the better articles. 



