On Miner alogical Surveys. 359 



4. — Description of the different kinds of slates that 

 occur in the country, places where the best kind are found, 

 mode to be followed in quarrying them, characters to be 

 used for distinguishing good from bad slate, and a statement 

 of those symptoms which indicate the presence of slate. 



5. — Description of the different species of precious stones 

 that occur in the country, places where found, mode of 

 searching for them, and of estimating their value. 



6. — Description of the different kinds of building stones 

 found in the country, places where found, most eligible 

 spots for quarrying them, mode to be followed in quarrying 

 them, and the kinds of building for which the different 

 kinds are best calculated. 



7. — General observations on the probability of finding 

 coal in the country, with a statement of the best mode of 

 following out such favourable appearances as may occur. 



8. — General observations on the mineral riches of the 

 country, and a comparison of its mineralogical structure with 

 that of other countries. 



Umballa Political Agency, 

 Aug. 15th, 1840. 



Remarks on Dracunculus. By Mr. J. McClelland. 



A communication from Mr. Brett, in the August number 

 of the " India Journal of Medical and Physical Science," 

 reminds me of a promise I had made to examine three spe- 

 cimens of Guinea-worm with which he very kindly favoured 

 me. About fifteen years ago the subject created much in- 

 terest in India, particularly in Bombay, where the disease is 

 very common throughout a large proportion of that Presiden- 

 cy. The first volume of the transactions of the Medical and 

 Physical Society of Calcutta contains no fewer than six papers 



