62 ZOOLOGICAL RESEARCHES 



to Grand Bassa , from there by sea in an open sailing boat 

 to River Cess , with a similar opportunity to Since and 

 from there again by steamer to Cape Palmas. In Grand 

 Bassa I went up the St. John's River as far as the first 

 rapids , and the same I did on the Cess (Cestos)- and Sinoe 

 River. Whereever I had an opportunity, I tried to get 

 informations from Liberians and natives , and am now con- 

 vinced that most of the mentioned species are to be found 

 as far down as the Cavallo River east of Cape Palmas , 

 or still farther towards the Ivory Coast. I was very sorry 

 that heavy attacks of fever did not allow me to have a 

 short stay on the Cavallo River, which is navigable much 

 higher up than any other Liberian river, but compelled 

 me to return on board a German steamer to Monrovia and 

 shortly afterwards to Europe. 



The results of my investigations are contained in the 

 list of birds , to which these lines are to form a short 

 introduction. I am sorry to say, that I am not fully sa- 

 tisfied with the ornithological part of our collections. Many 

 questions I hoped to be able to make out in loco or at 

 least to collect materials and facts to settle them after my 

 return , are still to be called the attention of ornithologists 

 upon. Some of them I hope to get materials for by my 

 friend Mr. Stampfli , whom I left in Liberia and who at 

 present , until next spring , is collecting on the Farmington 

 River, the other large confluent of the Junk. The total 

 number of species , found during my last visit to Liberia 

 is 151 , and, with the exception of some of the most common 

 ones , all are represented in our collections by at least one 

 specimen. The species , mentioned in my previous list (Notes 

 1886, p. 245) as collected by Mr. Schweitzer and others, 

 but not yet found by us , is now reduced to a very small 

 number , and several of those which are left , may after- 

 wards turn out to be identical with other species. Our last 

 collection contains the following species , not obtained during 

 our previous investigations in Liberia: 



Notes from tlie Leyden !M!useu.xxi, "Vol. X. 



