G6 Proceedings of tlie Asiatic Society. [Feb. 



Hadooda and across the bay. Geology not very interesting. The 

 camp is on the delta of the Hadass and stands a good chance of being 

 swept away in the rains. 



" I am getting a few skins, but only one of my collectors is here. 

 I am obliged to take flat skins of the larger mammals chiefly, but I 

 hope to have some fit for mounting. I must try to get a good pair of 

 the Wast-hog (Phacoclieirus) which, rather to my surprise, abounds 

 here. I killed a fine fellow last Sunday, but it was too far off to carry 

 him in, entire. I secured his head however. He showed no fight. 

 There is a largish antelope about, rather larger than black buck, both 

 sexes horned ; a species of Gazella in the more extended meaning of 

 the word. However, I must write to you about the fauna hereafter." 



The following correspondence with Colonel H. L. Thullier, regard- 

 ing the errors of the observations recorded at the Government 

 Observatory during the late cyclone was read. 



No. 775. 

 To Col. H. L. Thuillier, Surveyor General of India. 



Asiatic Scciety, Booms, Calcutta, 26th November, 1867. 



Sir, — In accordance with a resolution of the Asiatic Society, adopt- 

 ed at the ordinary general meeting held on the 6th Nov., I have the 

 honor to draw your attention to the grave discrepancy of the barometric 

 and rain gauge observations for the night of the 1st and 2nd November, 

 published by the officer in charge of your observatory, and those 

 recorded and published by M. Lafont and others. These discrepancies 

 are so great, as not to be explicable by any slight differences of the 

 instruments employed ; and that they are not so in the case of the 

 barometric observations, is proved by the fact, that up to Oh. 20m. 

 of the 2nd November, (at which time the 10 minute observations 

 recorded at your observatory, suddenly ceased,) the pressure curve 

 indicated by the observatory barometer and that of M. Lafont, coincide 

 as closely as those of any two barometers, observed by different 

 persons, at slightly different intervals, could be expected to do under 

 any circumstances. 



It is after Oh. 20m. that the great discrepancy above mentioned 

 commences, and while the hourly observations of the observatory 

 barometer indicate a lower minimum than in the cyclone of 1864, 

 viz. 28-554, M. Lafont 's observations shew a minimum of 28*686 only, 



