No. 507] BOTANICAL SOCIETY OF AMEEICA 



141 



adding with characteristic humility that at the end he 

 still stood in awe before the mystery of life. 



Large as is his service to botany, even in the partial 

 field assigned me on this program, it is but an incident 

 in his life-long struggle with this great mystery on the 

 border-line between the discoverable and the eternally 

 unknowable. 



1. Bees and fertilisation of kidney beans. Gard. Chron. 1857: 725. 



2. On the agency of bees in the fertilisation of papilionaceous flowers, and 



on the crossing of kidney beans. Gard. Chron. 1858: 828-9.— Ann. 

 & Mag. of Nat. Hist. iii. 2: 459-465. 



3. The origin of species by means of natural selection: or the preservation 



of favored races in the struggle for life. London, 1859, etc. 

 Index. 



4. Fertilisation of British orchids by insect agency. Gard. Chron. 18f.O: 



528.— Entomol. Weekly Intelligencer. 1860. 



5. Fertilisation of Vincas. Gard. Chron. 1861: 552. 



6. Fertilisation of orchids. Gard. Chron. 1861: 831. 



7. Vincas. Gard. Chron. 1861: 831-2. 



and on their remarkable sexual relations. Journ. Linn. Soc, Bot. 

 6: 77-96.— Abst. in Gard. Chron. 1861: 1048-9. 



9. On the three remarkable sexual forms of Catasctum tridentatum, an 



orchid in the possession of the Linnean Society. Journ. Linn. Soc, 

 Bot. 6: 151-7.— Abst. in Gard. Chron. 1862: 334-5.— Transl. in 

 Ann. des Sci. Nat., Bot. iv. 19: 204-255. 



10. On the various contrivances by which British and foreign orchids are 



tertilised by insects, and on the good effects of intercrossing. Lon- 

 don, 1862, etc. 



11. On the existence of two forms, and on their reciprocal sexual relation, 



in several species of the genus Linum. Journ. Linn. Soc, Bot. 7: 

 69-83.— Read Feb. 5, 1863. 



12. On the sexual relations of the three forms of Lythrum salicaria. Journ. 



Linn. Soc, Bot. 8: 169-196.— Bead June 16, 1864. 



13. On the character and hybrid-like nature of the offspring from the illegi- 



timate unions of dimorphie and trimorphic plants. Journ. Linn. 

 Soc, Bot. 10: 393^37.— Bead Feb. 20, 1868. 



14. On the specific difference between Primula veris, Brit. Fl. (var. officinal™ 



"of Linn.), P. vulgaris, Brit. Fl. (var. acaulis Linn.), and P. 

 elatior Jacq.; and on the hybrid nature of the common oxlip. 

 With supplementary remarks on naturally produced hybrids in the 

 genus Verbascum. Journ. Linn. Soc, Bot. 10: 437-i54.— Read 

 Mar. 19, 1868. 



15- The variation of animals and plants under domestication. London. 



