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THE AMERICAN NATURALIST [Vol. LIII 



yellows, as reported by East and Hayes, loc. cit., pp. 55-6. 

 In McCluer's crosses, 14, 17 and 18 at least, lie was evi- 

 dently working with endosperm color factors, the be- 

 havior of which was identical with those reported by East 

 and Hayes in their crosses as given in the citation above. 



McCluer made a considerable number of obsei-vations 

 on xciiia, but rcmai'ks (italics mine), "The results oh- 

 tahnd troin /ihiufiuf/ crossed seed have been of more im- 

 porhni'c llitui llir unmediate effect of crossing, not so 

 mucli in 1 Ik'iiiscK'cs perhaps as in the conclusions which 

 may be di'awn froin tliem." Such a point of view could 

 only liave been arrived at by one with something of an 

 instinct for genetic studios. 



Mc(,Muor reinnrks ur)on the great uniformitv of what 

 we should call liyl)i-i.l<. lie <ay> : 



Some iiitcrcMiii- nol.- were iiKidr to llh- rliar.-u-tcr- 

 i^tics of M)inc of llu' 1' , ploN. Vov <"\ninpir, il ^(WMtis 

 that the ])lof^ in ulii<-li Lrnininu u^.mI tlic pollen 

 parent decidedly rcM-mlihMj tlint parnit; tliat in o-osses 

 between Queen's (iohlcn X \Vliit(> Dent, the V\ plants 

 resembled the ])ollen ])arent. whereas in the rc.-ipi-ocal 

 cross, the plants were intermediate Ijctwccn tlic two pa- 

 rents. An interesting result came from tlic cro-- bcl \v(M>n 

 Queen's (lolden and Tearl ]X)p-corn. The >t;ilks were 

 intfi-niediatf^ ])et\veeii the i)ai-ents, ])ut l;n-ucr than the 

 avcrnii.' of^ th<' two ].areut<. Thi> characteristic extended 

 to the -K.wth of the eol). vo that the K, e.-ir^ were dis- 

 tiiirth l;iruer th:in the irvei'a-e of the ear^ of either of 

 ll'e p, tents :i fact \rrx uHl illiisti'.ded ill Tlate 2 of the 

 hnlletin. l'lot< of \'\. hybrids Ix'tween White Dent X 

 IJhiek Mexienn. divide<llv re^,. milled the white dent. An 

 extr:iuidinai> r-u!t s,..,,is to have heen ol.tained in this 

 ere... The s.,,,]. , H,,. .eed- ul' the white dent 



ear pollinated with Illack ^Mexican pollen, show the usual 



