1892.] G. King — Further material* for a Malayan flora. 121 



Derivation of the Avifauna of Narcondam and Barren Island. 



The butterflies must all of necessity be examples of involuntary 

 immigi'ation, and though not of necessity all immigrants under the in- 

 fluence of winds, have probably in most cases been driven thither by 

 one or other of the monsoons. 



Leaving out of account those of Barren Island, two of which have not 

 been specifically identified while a third has not had the particular local 

 race determined, and considering only those of Narcondam, we see that 

 one — Leptosia xiphia — has of necessity come from the north-east, and one 

 Ixias andamana — has of necessity come from the south-west ; all the 

 others may have arrived under the influence of either monsoon. 



Meagre as our knowledge of the Fauna of these islands is, we 

 seem justified in concluding that the predominance of an Andamans 

 element in it is altogether due to the fact that they are nearer the 

 Andaman Group, from the direction of which a strong monsoon blows 

 for the greater part of each year. At the same time it is clear that 

 the opposite monsoon, though blowing with less force and over a 

 wider sea, is not altogether inactive, but on the contrary must be held 

 accountable for the introduction of certain species which, though they 

 have reached these islands from Indo-China, have not yet succeeded in 

 passing beyond them to the Andaman Group proper. The precise ex- 

 tent of either influence it would however be premature, in the present 

 state of our knowledge, to attempt to assess. 



4. Further materials for a Malayan flora, — By Dr. G. King, F. R. S. 

 The paper will be published in the Journal, Part II. 



5. The Calcutta (Chatanati) Factory, first iveek of its History. — By 

 the Rev. H. B. Hyde, M. A. 



Job Oharnock and his party actually began their third and final 



