210 MY LIFE [Chap. 



to the more rapid elimination of the lower, and more rapid 

 increase of the higher types of humanity. 



Shortly afterwards I was interviewed for the Daily 

 Chronicle on this subject, in which I gave a condensed sketch 

 of these two articles, and this drew attention to them, and 

 brought me a very kind and appreciative letter from the 

 late Frances Willard, who was then in England. 



In 1 89 1 I wrote the two articles on the American flora 

 already referred to, and prepared a new edition of my two 

 books on " Natural Selection " and " Tropical Nature," now 

 forming one volume, but from which some of the more technical 

 portions were omitted, while two new chapters were added 

 — "The Antiquity of Man in North America," and "The 

 Debt of Science to Darwin." I also wrote two articles on 

 "Apparitions" for the Boston Arena, which are included in 

 the later editions of my " Miracles and Modern Spiritualism ; " 

 and I reviewed a few books in Nature, among which was the 

 important work of Professor Lloyd Morgan on "Animal Life 

 and Intelligence." 



In 1892 I wrote four review articles, three of which are 

 reprinted in my " Studies," and I reviewed (in Nature) Mr. 

 W. H. Hudson's delightful volume, "The Naturalist in 

 La Plata." 



In the year 1893 I was pretty fully occupied with literary 

 work. I prepared for Mr. Stanford a new edition of the 

 Australian volume of his " Compendium of Geography," in- 

 volving a large amount of new matter ; I contributed five 

 articles to reviews or books, two of which, on " The Ice Age 

 and its Work," gave an entirely new argument in favour of 

 the ice-origin of valley-lakes in glaciated regions ; and I also 

 reviewed two books and wrote a number of letters to Nature 

 on biological and physical problems. In the summer of this 

 year I went with my wife to the lake district — our first visit ; 

 we ascended two of the mountains, and I paid particular 

 attention to the phenomena of glaciation, which are every- 

 where prominent in rounded rocks, glacial striae, and abund- 

 ance of moraines. 



