1826-<; 



1855.] Memorandum on the Kunlcurs Sf Iron Ores of Burdwan. 213 



differ as much as 6 per cent, in their composition. It is difficult 

 to give them names, but we may call the best kind, which is in globu- 

 lar, bullet-like nodules (called I think Oooties both in Behar and 

 Burdwan 1) the globular Kunkur ; and the other which is in some- 

 what flattened and irregular lumpy concretions the Botryoidal 

 Kunkur. 



The following are the analysis of these Kunkurs with reference 

 only to the quantity of carbonate of lime which they contain 



Carbonate Lime 

 Bate. in \ 00 parts. 



c A. Globular Kunkur, . . Mr. Taylor. 62.25. 



1854 1 B. Botryoidal, .. .. .. 56.75. 



1849 C. Globular . . Flux for the Iron Ore of 



No. 41, .. .. to right 50.20. 



"D. a Sylhet Limestone,. . Piddington, .. 96.50. 



E. Kunkur from Burdwan Crystd. do. 71.00. 



F. Do. do. do. do. do. 72.00. 



G. Do. do. do. do. do. 71.50. 

 H. Do. do. do. do. do. 71.25. 

 I. A marly earth. . do. do. do. 50.00. 



Eeferring to Mr. Taylor on the subject of his specimens, he has 

 obliged me with the following very interesting notes on his iron ex- 

 periments and the Kunkurs, which at the present moment are valu- 

 able, as shewing what has really been done with Burdwan ores, with 

 only rude native apparatus, and by an unprofessional man. 



" It is out of my power to say whether the specimen of iron pre- 

 sented to the Asiatic Society by Mr. William Prinsep, and made by 

 me up here was smelted with coke or charcoal. To the best of my 

 recollection I sent several cart loads of the cast iron, made in seve- 

 ral experiments, both with charcoal and coke, and which of these 

 he gave to the Society is more than I can tell. I have, however, pre- 

 served a memorandum of three experiments made with coke, and 

 three with charcoal, which I enclose. These experiments were 

 principally made with the red ore of Sheargur, but in some of the 

 experiments I either mixed, or tried separately, some of the red 

 gravel magnetic ore, a specimen of which I have already given you, 

 although not from the same locality. The red gravel ore which I 



