578 THE STRUCTURE OF ECONOMIC PLANTS 



7. Cooper, D. C, "Anatomy and development of tomato flower." Bof. Gaz- 



8}: 399-411, 1917. 



., "Macrosporogenesis and the development of the macrogametophyte 



of Lycopersicum esculentum." Am. Jour. Bof. 18: 739-748, 1931. 

 9. Fink, B., "Pollination and reproduction of Lycopersicum esculentum." 

 Minn. Hot. Studies i: 636-643 (1894-1898), 1896. 



10. Gardner, M. W., "Cladosporium leaf mold of tomato; fruit invasion and 



seed transmission." Jour. Agr. Kes. }i: 519-540, 19x5. 



11. Groth, B. H. a., "Structure of tomato skins." N.J. Agr. Exp. Sta. Bull. 



228, 1910. 

 II. GusTAFsON, F. G., "Growth studies on fruits." Plant Phys. i: 165-171, 1916. 

 15. , "Inducement of fruit development by growth-promoting chemicals." 



Proc. Nat. Acad. Sci. 22: 618-636, 1936. 



14. Hawthorn, L. R., "Seedlessness in tomatoes." Science 8;: 199, 1937. 



15. Howard, Grace E., "Pigment studies with special reference to carotinoids 



in fruits." Ann. Mo. Bot. Gard. 12: 145-111, 1915. 



16. Jones, H. A., and Rosa, J. T., Truck Crop Plants, McGraw-Hill Book Co., 



1918. 



17. Kendall, J. N., "Abscission of flowers and fruits in the Solanaceae with 



special reference to Nicotiana." Univ. of Calif. Publ. Bot. ;: 347-418, 

 1918. 



18. King, Effie, "Root-stem transition in the axis of Lycopersicum esculentum." 



Unpuhl. M.S. Thesis, Univ. of Chicago, 1930. 



19. Kraus, E. J., and Kraybill, H. R., "Vegetation and reproduction with special 



reference to the tomato." Ore. Agr. Coll. Exp. Sta. Bull. 149, 1918. 



10. Kubart, B., "Die organische Ablosung der Korollen nebst Bemerkung iiber 



die Molsche Trennungschichte." S.-B. Akad. Wiss. Wien. Math. -Nat. 

 iij: 1 49 1, 1906. 



11. LiNDSTROM, E. W., and Koos, Katherine, "Cyto-genetic investigations of a 



haploid tomato and its diploid and tetraploid progeny." Am. Jour. Bot. 

 18: 398-410, 193 1. 

 11. MacDougal, D. T., "Hydration and growth." Carnegie Inst. Wash. Publ. 



297, 1910. 



13. MacGillivray, J. H., and Ford, O. W., "Tomato quality as influenced by 



the relative amount of outer and inner wall region." Ind. Agr. Exp. Sta. 

 Bull. ^2j, 1918. 



14. Makemson, W. K., "The leaf mold of tomatoes caused by Cladosporium 



fulvum Cke." Mich. Acad. Sci. Kpt. 1918, 20: 311-348, 1919. 



15. Namakawa, I., "Uber das Offnen der Antheren bei einigen Solanaceen." 



Bot. Mag. (Tokyo) jj.- 61-69, 1919. 



16. Rosenbaum, J., and Sando, C. E., "Correlation between size of the fruit and 



the resistance of the tomato skin to puncture and its relation to infection 

 with Macrosporium tomato Cooke." Am. Jour. Bot. 7: 78-81, 1910. 



17. Smith, O., "Pollination and life-history studies of the tomato (Lycopersicum 



esculentum Mill.)." Cornell Univ. Agr. Exp. Sta. Mem. 184: 3-16, 1935. 



xS. , "Effects of light on carotcnoid formation in tomato fruits." Cornell 



Univ. Agr. Exp. Sta. Mem. i8j: 3-15, 1936. 



