brcMicis. it will bt* iiottrtHt that then* is a wry «liH'i(l«H| pn'iMnulcniiKU' of 

 fiMimlos, tho ninj^lr iiialr family (-'/I) Iniii^ (!niu|n»sr<| ni only twu iii- 

 tliviiliials, which an* Unt few to be c<»nHi(irn'<l. 



TAHLK 111. 



Ffniaii^ /nym a mi,rrd family v tmil^/nim n uuilr f'umil 



NutnSrrof Niimbrrof Nuntti«>riff 



raiitlljr Female iNurrnt Male |i«rrnt fpiuAln) malM 



li '2 ex A 3 X vx A 2 «4 



li 3 ex A 3 X ex A 2 |H 



M 5 ox /. 8 X ex /. 13 SUrih- 



-V 10 ex /. H X ox /. 13 3 6 



-V 4 ex M 10 X ox .V (> fi fi 



X 6 ox M 8 X ox M fi 8 12 



X 7 ox 3/10 X ox .1/ 6 7 I") 



.V 8 ox M 2 X ox 3/ fi 7 10 



(> 2 ex \ 8 X ex .V 2 — 1 



()14 ex.V 7 X ex .V 2 1 « 



(> 16 ox \ 7 X ox .V 2 3 — 



O 19 ex JV 7 X ex \ 2 1 4 



/' 13 ox O 18 X ox O 6 4 — 



C. Excluding from discussion the two families contiiining less than 

 four individuals, all the families are mixed with the exception of three 

 female broods. There is, however, a distinct preponderance of males 

 over females in the mixed broods, the respective totals of the two sexes 

 being 61 male and 33 female. 



TABLE IV. 



Female from a mixed family x mnie froin a mi j:ed family. 



Number of Nunil)€r of Number of 



family Female parent Male parent females males 



Bl ex A 3 X ex A S 3 14 



M2 ex L 8 X ex L 8 4 1 



MS ex L 8 X ex L IS 3 4 



/? 4 ex .-1 la X ex .4 la — 1 



D. The results of this series are too few for drawing any definite 

 conclusions, but it is suggestive that the three families are all " mixed " 

 broods. 



Order in which the adults hatched. 



In none of the experiments was there any suggestion that the fenialf 

 first laid eggs of one sex, and towanis the end of her lift', when exhaust<'d, 

 laid eggs of the other sux. With reganl to the mixed broods, the males 



Journ. of Gen. vin ^'-^ 



