84 Cooperative Investigations on Plauts 



Fuilhcr investigations oii llic niure «table culuur charactcrs alrcady plauucd 

 will, to judgc from the data here given, provide more consistent numerical rcsults. 



(v) Our experiments show that the plant, not the capsulc, must be looked 

 lipon as the parent individual ; closer resemblance of brother plants from seed of 

 the same capsulc being in all piobability due to the rcstricted varicty of pollen 

 fertilising the seed of the same capsulc compared with the divci-sity of pollen 

 whiih fertilises all the seed of all capsules on the same plant. 



(vi) On the completimi of a long series of observations one invariably discovere 

 much that one ought to have done and to have Icft undone; we reach a knowlcdge 

 whicli a priori \v;is impossible, hovvever desirablc. Wc have learnt to appreciate 

 the importance of (a) a far greater variety in initial parentages, (6) the selection 

 of characters like colour and petal form less subject than Stigmata to environ- 

 mental differences, and (c) the difficulty of avoiding differential environment when 

 the plants are grown in ordinary garden groun<i. We feel that secular experiments 

 on large series of Shirlc}- poppies would throw much light on the iaws of plant 

 hen!(lity, but to conduct them proporly wants not only the space but the in- 

 dividual Observation and record of each plant, whicli we believe can only be easily 

 and successfully provided when the inuch needed Biometrie Farm has been 

 established *. 



APPENDIX OF STATISTICAL TABLES. 



A. Oxfonl Hotnotyposis in Stigmata. 



U. CJrotkham „ „ „ 



C Bookham „ „ „ 



1). Enfiold I „ „ „ 



E. Entifld II „ „ „ 



F. Kidderminstor „ „ 



G. Higligate Pareubd Plant Mcjui and OH'spring Caixsule. 

 H. O.xford „ 



I. Bookham „ „ ,, „ 



J. Enfield I „ „ 



K. Kiddormiiister „ „ „ 



L. I'^ntiold I. I'ureiital Plant Moan and OB'spriug Plaut Mean. 



M. Oxfoi'd. Latencss of Klowcring .'ind Xnmber of Stiginatji. 



N. U.\ford. Parontal Plaut Meau and Stigmata of First Flowcr of üüspriug. 



* To any of onr readers willing to assist in further observations on " first flowers," the Editors will 

 most gladly send seed of pedigrce poppies with suggostions for further work. 



