Along the Essequebo and Potaro. 131 



of the wood-doves plaintively sounded, while the bell-bird 

 or campanero (Chasmorhynchus niveus) rang out loudly 

 and clearly its own peculiar notes. The note of this bird 

 has very differently affected travellers, by some of whom 

 it has been described as of a deep bell-like character, 

 and by others as more like the clinking of the hammer 

 on an anvil. No doubt some of this difference is due to 

 the individual sensitiveness of the ear for musical 

 sounds, while the distance at which the bird is heard, 

 and its age, also enter into its consideration. Two very 

 distinct cries are certainly to be heard, the one of a deep 

 bell-like character, something like the sound of the 

 combination " do-rdng" (as Mr. C. B. Brown expresses 

 it), with the latter syllable prolonged ; while the other is 

 a clinking sound, like the combination "kong-kay," with 

 the final syllable also prolonged. 



Of insect life there was not very much to be seen. 

 Species of the white, yellow and orange butterflies (Pieris, 

 Callidryas, Aphrissa, Phasbis, etc.), and of the blue 

 butterflies, chiefly Morplw mcnelaus and M. achilles, 

 flitted along the banks or across the river, and 

 occasionally with them the lovely, glaucous-banded 

 Prepona (Prcpona amphitoc) ; while small swarms of bees 

 (Xylocopa) at times buzzed around, and some most tan- 

 talizing and persistent flies wearied out one's patience. 

 In the forest, common species of lleliconius, Picrella, 

 Anartia, etc., were met with, but among the bushes it 

 was not easy to procure them. 



At Warratu, where the last obstruction in the river is 

 met with before the landing at Tukuie is reached, 

 the luggage was carried over and the corial easily 

 taken up by water ; and we landed at Tukuie about 



K 2 



