WALDRON— THE PEANUT 337 



re-formation and presence of chlorophyll in these indicate the re- 

 tention through long periods of time, of factors for its formation in 

 such a leaf structure. 



8. The possible benefits derived from underground fruit formation 

 may be (a) protection from grazing animals, (b) formation of cer- 

 tain proteins possible only in darkness, (c) more rapid and greater 

 development in fruit size and number. 



LITERATURE CITED 



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7. Watt. Agl. Ledger, India No. 15, 1895. 



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9. Delile. Fl. d.Egypt, 1824. 



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12. Sloane. Jamaica, 1696. 



13. Rumphius. Herb. Amb., V, 1755. 



14. Bentham. In Flora Braziliensis, Papil. 1859. 



15. Petti t. Arachis hypogaea, Nfem. Torrey Bot. Club, 4, 1895. 



16. Winton. Anatomy of the Peanut, Conn. Rept. pt. 2, 1904. 



17. Adam. L'Arachide, 1908. 



18. Richter. Beitrage zur Biologie der Arachis hypogaea, Inaug. Diss. 1899. 



19. Solereder. Anat. of Dicotyledons, V. i, 1908. 



20. Strasburger. Textbook of Botany, 1898. 



21. Jost. Plant Physiology, 1907 



22. Haberlandt. Physiological Plant Anatomy, 1914. 



23. Pfeffer. Plant Physiology, 1900. 



24. Snow. Dev. of Root Hairs. Bot. Gaz. 40, 1905. 



25. Bennett. Planting Peanuts. Ark. Bull. 58, 1899. 



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27. Darwin. The Movements of Plants, 1865. 



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29. Beattie. The Peanut, Farmer's Bull 431, U. S. D. A. 1917- 



Some Recent Agricultural Publications Pertaining to the Peanut 



Batten. Peanut Culture. Va. Agr. Exp. Sta. Bull. 218, 191 8. 



Spencer and Jenkins. Peanuts for Oil Production, U. of Fla., Bull. 12, 1918 



