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One of the Allr races had crossed the gulf between the two expanding cultures, and had touched several worlds briefly, to land in the biggest city on Ptek, the trading center for a whole sector. It had been there two days already, before being reported to Earth!
This at once gives, a basis for vegetative selection, upon which it is not necessary to choose a small number of very excellent stems, but simply to avoid the planting of all those that are below the average. By this means the yield of the cultures has often noticeably been enhanced.
"We'll only orbit around it. First, though, I want to get rid of those damned packed-up cultures. They're dead, by the way. I killed them with super-sonics a couple of days ago, while a fine argument was going on about distance-measurements by variable Cepheids of known period." He put the four boxes carefully in the disposal unit. He operated it.
A special lecture will be devoted to this very interesting source of impurity and of uncertainty in ordinary cultures. Of course, crosses may lie in the proposed line of work, and this is the third point to be alluded to. They must be surrounded with the same careful isolation and protection against bees, as any other fertilizations.
I made a pedigree-culture of lata during eight successive generations, pollinating them in different ways, and always obtained cultures which were partly constituted of lata and partly of lamarckiana specimens. But the latas remained lata in all the various and most noticeable characters, never showing any tendency to gradually revert into the original form.
Having brought my race up to this point, I was able to introduce a new and far more easy mark, afforded by the seedlings, for my selections. This mark has since remained constant, and has brought about a rapid continuance of the improvement, without necessitating such large cultures.
Descriptions were formerly difficult and so complicated that the ablest writers on this genus, Fries and Nageli are said not to have been able to recognize the separate species by the descriptions given by each other. Are these types to be considered as elementary species, or only as individual differences? The decision of course, would depend upon their behavior in cultures.
We know that in each of these submerged and semisubmerged elements of the population there are rich factors of racial culture. Motherhood is the channel through which these cultures flow. Motherhood, when free to choose the father, free to choose the time and the number of children who shall result from the union, automatically works in wondrous ways.
And as these colours intensify and the tradition of the former order fades, as these cultures become more and more shaped and conscious, as the new literatures grow in substance and power, as differences develop from speculative matter of opinion to definite intentions, as contrasts and affinities grow sharper and clearer, there must follow some very extensive modifications in the collective public life.
The civilisation of Japan cannot be traced back beyond about the eighth century B.C. Even then the population was probably a mixed flotsam from neighbouring lands Ainus, Koreans, Chinese, and Malays. What was the character of the primitive civilisation resulting from the mixture of these different cultures we do not know. But the chief elements of Japanese civilisation came later from China.
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