PUBLICATIONS. 97 



Written May ist, 1881. 'The Effects of Cross and 

 Self- Fertilisation ' was published in the autumn of 1876 ; 

 and the results there arrived at explain, as I believe, 

 the endless and wonderful contrivances for the trans- 

 portal of pollen from one plant to another of the same 

 species. I now believe, however, chiefly from the 

 observations of Hermann M tiller, that I ought to have 

 insisted more strongly than I did on the many adapta- 

 tions for self-fertilisation ; though I was well aware of 

 many such adaptations. A much enlarged edition of 

 my ' Fertilisation of Orchids' was published in 1877. 



In this same year ' The Different Forms of Flowers, 

 &c.,' appeared, and in 1880 a second edition. This 

 book consists chiefly of the several papers on Hetero- 

 styled flowers originally published by the Linnean 

 Society, corrected, with much new matter added, 

 together with observations on some other cases in 

 which the same plant bears two kinds of flowers. As 

 before remarked, no little discovery of mine ever gave 

 me so much pleasure as the making out the meaning 

 of heterostyled flowers. The results of crossing such 

 flowers in an illegitimate manner, I believe to be 

 very important, as bearing on the sterility of hybrids ; 

 although these results have been noticed by only a 

 few persons. 



In 1879, I had a translation of Dr. Ernst Krause's 

 1 Life of Erasmus Darwin ' published, and I added a 

 sketch of his character and habits from material in 

 my possession. Many persons have been much inte- 

 rested by this little life, and I am surprised that only 

 800 or 900 copies were sold. 



VOL. i. H 



