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Lectures on the Calculus of 



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By OSKAR BOLZA, Ph.D. 



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University of Chicago 



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V 



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History of PolysipKonia Violacea 



yAMANOUCHI, Fellow in Botany in the University of Chicago 



>% pages, 10 plates, 8vo, paper, net $1.00, postpaid $1.05 



erolfn? rS have P l,bli *lie<. accounts of investigations on the red algae, but the true life-historv 

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Semm.at.ng tetraspores and carpospores, and in the vegetative cells of mature plants 



•7. u !. autho " " 



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,he ey«oin f CC ° Unt of spermatogenesis, formation of procarp, fert.lization, and development of 



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 there is a discussion of the cytological phenomena and alternation of generations. 



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