1900.] FAUNA OF THE WHITE NILE. 951 



The following itinerary will help to localize the places mentioned 

 in this paper, which are not marked in the ordinary atlases 

 available : — 



11th March, 1900. Leave Omdurman and proceed up the 



White Nile. 

 12th. Pass El Duein, arid later Kowa. 

 13th. Cross 14° North lat. in morning, pass Goz Abu Goina, 



and arrive at Abu Zeit. 

 16th. Leave Abu Zeit. 

 17th. Pass Jebel Ain in morning. 

 18th. Eeach Benk in evening. 

 19th. Eeach Long Tom in evening. 

 20th. Pass Jebel Ahmed Agar. 

 21st. Pass Kaka. 



22nd. About 5 a.m. reach Pashoda, and about 9 p.m. the Sobat. 

 23rd. Eeach the base-camp of the sudd-cutting expedition near 



Gabt-el-Meghahid; abo at 5 p.m., mouth of the Bahr-el-Zeraf. 

 24th-26th. Proceed about 50 miles up the Zeraf and back 



again. 

 27th. Proceed west along the White Nile, pass the mouth of 



the Bahr-el-Jebel, reach Lake No. 

 28th. Leave Lake No, proceed up the Bahr-el-Ghazal. 

 29th. Visit tributaries of the Bahr-el-Ghazal (the Bahr-el-Arab, 



proceeding about 12 miles up and back again ; the Bahr-el 



Homar found un navigable). 

 30th. On Lake Ambadi, near Meshra er Eek. 

 31st March-2nd April. Eeturn down the Bahr-el-Ghazal to 



Lake No. 

 3rd April. Proceed up the Bahr-el-Jebel. 

 5th. Pass Heliat Nuer ( = Meshra Nuer, or Eljab Dok). 

 8th. Eeach neighbourhood of Shambe ( = Schambeh), about 



7° 20' North latitude, and about 830 miles from Omdurman, 



and turn back on account of shallow water and want of 



fuel for the steamer. 

 14th. Get back to mouth of the Bahr-el-Jebel, and 11 p.m. 



reach Gabt-el-Meghahid. 

 16th. Proceed about 12 miles up the Sobat and down again. 

 17th. Eeach Pashoda. 

 26th. Arrive back at Omdurman. 



I have to acknowledge my deep sense of obligation to Sir 

 William Garstin, K.C.M.G., and to Mr. C. Crawley for their 

 assistance in noting facts of interest aud in securing specimens 

 during the two months I had the privilege of travelling with them 

 on the Nile ; and to the officials of the British Museum of Natural 

 History for their invariable kindness in helping me to work out 

 the collections brought home. I am particularly indebted to 

 Mr. Oldfield Thomas and to Mr. W. E. Ogilvie Grant. 



The nomenclature of the birds in this paper is according to the 

 British Museum Catalogue, but the Orders are arranged as far as 



