1877.] On the Meteorology of the Bombay Presidency. 539 



especially in those for the dii^ection of the wind at a single hour, the 

 agreement of the final result with Dr. Buys-Ballot's mean (obtained pro- 

 bably in the same way), and that found here by a wholly different method, 

 is very satisfactory. 



One of the most interesting parts of Mr. Clement Ley's paper is the 

 confirmation given, by so zealous and accurate an observer, of the results 

 relating to the different directions of the aerial currents discovered by me 

 upwards of thirty years ago. The author remarks, — " Erom many thou- 

 sands of observations made at well-exposed situations in the Midland 

 Counties of England, I have found that in about seven cases out of eight, 

 with a light air or moderate wind, if the observer exactly face the wind on 

 the earth's surface, he finds the current in clouds of no great altitude over- 

 head to be a little from his right. This difference, it may be remarked, 

 is commonly greatest and most uniformly noticed in dull or rainy weather 

 with S.W. or S.E. winds " *. 



That is to say, 



\p — (p is iwsitive, 



and most so in the south quadrants. These results are in exact con- 

 formity with those obtained from the Makerstoun observationst. 



Mr. Clement Ley also finds the difference of direction between the 

 isobars and wind to be greatest in the south quadrants (a result which I 

 had proposed to examine specially, p. 538) ; but he does not seem to have 

 remarked the important fact of the coincidence in the increase of B — (p 

 and -^—(p- I recommend Mr. Clement Ley's instructive paper to the 

 attention of meteorologists. 



II. " The Meteorology of the Bombay Presidency.'^ By Charles 

 Chambers^ E.R.S.^ Superintendent of the Colaba Observatory. 

 Heceived January 2, 1877. 



(Abstract.) 



This work consists of four parts — the first dealing with registrations 

 of meteorological phenomena at the Colaba Observatory during a period 

 of twenty-seven years ; the second with moderately full observations at 

 five military stations in the Bombay Presidency during a period of nine- 

 teen years ; and the third with large numbers of observations from civil 

 hospitals and revenue stations, being those of selected registers extend- 

 ing over various periods from not less than a fortnight up to a number 

 of years : in this part the phenomena treated are temperature of the air, 

 winds, and rainfall only ; and the extent of territory to which the obser- 

 vations refer includes the whole of the Presidency, Sind, and the western 



* Journal of the Scottish Meteorological Society, July 1873, p. 70. 

 t "EesultB of Makerstoun Observations," Trans. Eoy. Soc. Ediub. 184:3 to 1846, 

 pp. ciii, civ. 



