LIXNEAN SOCIETY OF LONDON. lix 



an elaborate monograph accompanied by ten plates, and printed in 

 the Transactions of the Royal Danish Society for 1869, with a French 

 resume " (noticed in * Zoological Record,' vol. vi. p. 633). In Echi- 

 noderms, Dr. Liitken's valuable essays on varions genera and species of 

 Ophiuridae, recent and fossil, with a Latin synopsis of Ophiuridae 

 and Euryalidae, and a general French resume, forming the third 

 part of his " Additamenta ad Historiam Ophiuridarum," in the 

 Transactions of the Royal Danish Society for 1869, have been 

 analyzed in the ' Zoological Record,' vol. vi. pp. 639, 642, &c. No 

 contribution to systematic botany, of much importance, has appeared 

 in Denmark since those mentioned in my Address of 1868. 



There exists no general Danish Fauna ; but I have a rather long 

 list of detached works and essays from which the different classes 

 of animals inhabiting Denmark may be collected. Of these the 

 most recent are Collin's Batrachia, in Kroyer's ' Tidsskrift' for 1870, 

 and Morch's marine MoUusca, "publishing in the ' Yidenskabelige 

 Meddelelser ' for the present year. 



"With regard to Iceland, the only works mentioned are Steen- 

 strup's terrestrial Mammals, or rather Mammal, of Iceland, in the 

 ' Yidenskabelige Meddelelser' for 1867; Morch's Mollusca in the same 

 journal for 1868. C. Miiller's account of the Birds of Iceland and 

 the Faroe islands dates from 1862, and Liitken's of the Echino- 

 derms from 1857 ; and I find no mention, of any special account, of 

 the insects of the island ; whilst in Botany C. C. Babington has 

 given us, in the 11th volume of our Linnean Journal, an excellent 

 revision of its flora, the phsenogamic portion of which may now be 

 considered as having been very fairly investigated ; and E. Rostrup, 

 in the 4th volume of the Tidsskrift of the Botanical Society of 

 Copenhagen, has enumerated the plants of the Faroe islands. 



II. Sweden and Noeavay. 



The Scandinavian peninsula is, on several accounts, of great in- 

 terest to the biologist. It includes a lofty and extensive mountain- 

 tract, with a climate less severe than that of most parts of the 

 northern belt at similar latitudes ; and the uniformity of the geolo- 

 gical formation is broken by the limestone districts of Scania. It 

 thus forms a great centre of preservation for organic races between 

 the wide-spread tracts of desolation to the east and the ocean on the 

 west, and has therefore been treated as a centre of creation, whence 

 a Scandinavian flora and fauna has spread in various directions. 

 As the home of Linnaeus it may also be considered classical ground 

 for systematic biology, the pursuit of which is now being carried on 



