zu Munchen," 1865.

Some of Nageli's points are discussed in the "Origin," Edition V., page 151.), and who in consequence maintains that there is some unknown innate tendency to progression in all organisms.

I said in a letter to him that of course I could not in the least explain such cases; but that they did not seem to me of overwhelming force, as long as we are quite ignorant of the meaning of such structures, whether they are of any service to the plants, or inevitable consequences of modifications in other parts.
I cannot understand what Watson means by the "counter-balance in nature" to divergent variation.

There is the counterbalance of crossing, of which my present work daily leads me to see more and more the efficiency; but I suppose he means something very different.

Further, I believe variation to be divergent solely because diversified forms can best subsist.