1876.] 



Variations of the Barometer in India, 



31 



the correspondence of moyements at all the stations ; yet the interval 

 from the preceding minimum is so short, and the retardation of the 

 minimum at Simla so considerable, that the latter occurs only a few hours 

 before this maximum at Singapore. 



A faint minimum and following maximum occur January 21-23 at all 

 the stations, and these are followed by a minimum, January 24, at Simla, 

 which occurs later (on Sunday) at the other stations ; these movements 

 and the slight maximum, January 28, 29, which could be examined are 

 too small for any certain comparison. 



5. January 30^ 31^ Fig. 5, p. 37. 



d h 



Lowest mean, Simla, January 30 19 

 „ „ Madras „ 31 

 „ „ Singapore „ 30 4 



The principal minimum of this great movement occurs at the hours 

 given for Simla and Madras ; but the principal minimum occurs at Singa- 

 pore, February 3rd. An examination of the observations on Saturday 

 evening and Monday morning at Simla and Madras shows that a secon- 

 dary minimum probably occurred at these stations on Sunday, February 

 2nd; this, minimum may thus be described as corresponding to the mini- 

 mum at Singapore. 



6. February 6^ 7^ Fig. 6, p. 37. 



d h 



Highest mean, Simla, February 6 20 

 „ „ Madras „ 7 9 

 „ „ Singapore „ 7 5 



The diminution of pressure to Saturday night is more marked at 

 Simla than at the other stations (see curves, p. 28). 



7. February lO'^. Fig. 7, p. 37. 



d h 



Lowest mean, Simla, February 10 20 



„ „ Madras ,, 10 17 



„ 5, Singapore ,, 10 22 



This minimum has nearly the same form at all the stations, a more 

 rapid descent than the following rise. 



8. Febraary 13^^. Fig. 8, p. 37. 



d h 



Highest mean, Simla, February 13 13 



Madras „ * 13 18 



„ ,, Singapore „ 13 4 



A large fall takes place at Simla on Saturday, February loth, while at 

 the other stations the diminution of pressure is comparatively small ; 

 there is in consequence a marked increase shown at Simla from Monday 



