1881.] Edward Thomas— The Revenues of the Mughal Empire. 121 



The material, magnetic oxide of iron, containing perhaps from 60 to 

 70 per cent, of iron, though admirably suited on account of its weight 

 and toughness for making into a chipped implement, does not appear to 

 have been often so employed. The present is in fact the only known 

 specimen. 



It might be suggested by some that the use of this material was a 

 step in the direction of the substitution of iron for stone, but it would be 

 difficult to prove such a proposition. 



The following papers were read — 



1. The Revenues of the Mughal Empire in India. — By Edward Thomas, 



F. B. 8., late Bengal G. S. 



(Abstract.) 



In Volume XL IX of the Journal of the Society a paper was published 

 by Mr. C. J. Rodgers on the " Copper Coins of Akbar," in which he 

 entered into some speculations on the amount of the State Revenue of 

 that monarch, based upon new interpretations of the legends of his coins, 

 and considerably differing from the calculations of Mr. E. Thomas, in his 

 "Revenue resources of the Mughal Empire." The present paper is a brief 

 reply by Mr. Thomas. After mentioning that his calculations have been 

 accepted as correct by Dr. Hunter, Mr. C. Markham and others, he shows 

 that one of Mr. Rodgers' main arguments, based on his reading the word dam 

 on Coin No. 4, falls to the ground, inasmuch as the word is not dam, but 

 damrd (i. e., a double damri). He similarly shows that Mr. Rodgers' 

 second main argument is based on a confusion of the terms tanTcah and 

 tdnhe. 



This paper will be published in full in the Journal, Pt. I, No. 2, 

 for 1881. 



2. Description of a new species of Butterfly belonging to the genus 



Dodona. — By Lionel de Nice'yille. 



[Received June 24th ; Read July 6th, 1881.] 



Dodona longicattdata, n. sp. 



$ Upperside deep shining brown. Fore wing crossed before the 

 middle by a broad white band which does not quite reach the costa, being 

 narrowest at that point and divided by the nervules into two small spots. 

 This band has its inner margin straight, the outer margin evenly convex. 

 A submarginal series of six white spots placed irregularly. An indistinct 

 marginal series of linear spots. Hind wing with the white band of the 

 fore wing continued in a wedge-shaped figure across the disc of the wing, 

 ending in a point just below the first submedian nervure. Abdominal 



