390 Field Museum of Natural History — Reports, Vol. V. 



varieties reproduced are: The West Indian; The Guatemalan; The 

 Mexican; and a hybrid secured by crossing the Guatemalan and the 

 Mexican. The Coconut (Cocos nucijera): enlarged male and female 

 flowers together with a section of the female flower revealing its essential 

 characters. The Spider Lily {Hymenocallis carihaed) : a full size flower- 

 ing plant. Cotton plant {Gossypium barbadense) : an entire plant in full 

 leaf, flower and ripe boll, natiiral size; an enlarged flower, in section, 

 revealing the essential organs, Zamia {Zamia floridana): enlarged 

 sporophylls and a fruiting cone of this species illustrating the floral 

 characteristics of the cycads. Mangoes {Mangifera indica): three 

 varieties of this delicious fruit of the Sumac Family, now being cultivated 

 for the market in southern Florida: "The Mulgoba," ''The Haden," 

 and "The Amiri." A Green Alga (Oedogonium): eight enlargements 

 illustrating reproduction in this group; whole mass of the plant, mag- 

 nified; asexual reproduction, the oogonia; the sperm cells; dwarf 

 males; resting stage, oospore; germination, zoospores; fertilization. A 

 Green Alga (Ulothrix): four enlargements illustrating this genus: A 

 piece of a filament, spore formation; swarm-spores, germination; con- 

 jugation; zygospores. More or less work has also been done on the 

 following studies now in process of production: Coconut (Cocos nuci- 

 jera); reproduction of a natural size tree top in leaf, full flower and 

 fruit. Zamia, (Zamia floridana); a full size plant of this important 

 starch-producing cycad. Four-'o-Clock (Mirabilis jalapa) ; a portion of 

 a natural size plant and a number of various colored flowers, designed 

 to illustrate Mendelian principles of heredity. Screw Pine (Pandanus 

 utilis); reproduction of a portion of the plant, natural size. Pride-of- 

 India (Melia Azedaracha); an enlarged flower revealing the essential 

 organs, to illustrate characteristics of the Mahogany Family. Alga 

 (Bryopsis plumosa) ; an enlarged tip of a frond. 



During the first part of the year packing in the Department of 

 Geology of all material and cases intended for the new building was 

 completed. This included packing of the contents of forty-two exhibi- 

 tion cases remaining installed at the close of last year, a large quantity 

 of material belonging to the study collections, fumitiure and equipment 

 of the ofiices and laboratories of the department and some collections 

 and objects that for lack of exhibition space had been stored in the 

 basement. As noted in a previous report, the nature of nearly all the 

 specimens in the exhibition cases made it necessary to remove them from 

 these cases in order to put them in a safe condition for transportation. 

 In some instances after being packed in proper receptacles, the speci- 

 mens were returned to the cases and the cases used as carriers, but 

 it was found possible to move only three cases and contents without 



