ON THE NATURAL HISTORY OF TIMOR LAUT. 265 



their geographical distribution : Diaphceies rugosus, a new genus and 

 species of Staphylinidce known from Java ; Gyphogastra angulicollis, only 

 previously known from Banda ; C. splendens, a new species allied to the 

 preceding ; Archetypus rugosus, belonging to a genus of Longicorns of 

 which there was only one species previously known, which species occurs 

 in Waigiou, Dorey, and Aru ; Nemophas forbesii a new Longicorn nearly 

 allied to N. grayi from Amboina. Further, a new species of ground 

 thrush (Gcocichla machihi) has been described by Mr. Forbes from addi- 

 tional specimens brought home by himself on his return. So that our 

 knowledge of the avifauna of this region has been increased by the 

 addition of twenty-four new species, entirely collected on the few square 

 acres to which the inter-tribal wars of the natives restricted Mr. Forbes's 

 operations. 



At the presentation of our last report, Mr. Forbes, who had just 

 returned to England, gave a short description of the region visited by 

 him ; but at the meeting of the Royal Geographical Society, to which we 

 have referred above, he gave a more detailed account, which has been 

 published, illustrated by a map, in their ' Proceedings ' for March, em- 

 bodying the geographical observations made by him. 



The collections of Fishes, Crustacea, and Hydrozoa, though containing 

 much that was of interest, added few species that were new to science. 



A statement in our last report, on page 2'27, that ' the total expense of 

 Mr. Forbes's expedition has amounted to 300Z.' ought perhaps to be cor- 

 rected, as we understand from Mr. Forbes that the total cost was more 

 than double this sum. 



Report of the Committee, consisting of Dr. Pye-Smith, Professor 

 de Chaumont, Professor M. Foster, Professor Burdon Sanderson 

 (Secretary), and Mr. W. North, appointed for the purpose of 

 investigating the Influence of Bodily Exercise on the Elimina- 

 tion of Nitrogen (the experiments to be conducted by Mr. North). 

 Drawn up by Mr. North. 



I have to report that, owing to various circumstances, I have been unable 

 to prosecute my researches during the past year. An unforeseen difficulty 

 has arisen with regard to the work machine ; this is that it is so large 

 that it is difficult to find laboratory accommodation for it, and the noise 

 and vibration caused by the sudden fall of the weight is so great as to be 

 a cause of very serious annoyance to others. I have not yet been able to 

 find a suitable place in which to set it up, but I hope before long to be 

 able to do so. I enclose a copy of the abstract of a paper read before the 

 Royal Society in October last, which gives the results of my researches 

 up to that date, and for the continuation of which the work machine has 

 been constructed. I desire that the Committee may be reappointed. 



