164 ON AUSTRALIAN STORMS. 



announce long beforehand the day on which such observations 

 should be made ; this is not required. Sufficient warning is given 

 by the barometer, and if the instrument is found at any time to 

 be falling rapidly, a series of hourly or two-hourly observations 

 should be at once commenced in order to secure the gradual 

 variations of the atmospheric pressure, together with the corres- 

 ponding changes of the wind. Especially should the time and 

 amount of the least pressure be secured. At the chief observatories 

 in England, self-recording instruments are established. The 

 principal instruments are the barograph and the anemometer ; 

 the former registers the gradual march of the atmospheric pres- 

 sure, and the latter the direction and velocity of the wind. These 

 records being continuous and unbroken, the slightest and briefest 

 changes are traced with accuracy. It is much to be regretted 

 that the expensive character of these instruments prevent their 

 general adoption. I am happy to say that a self-recording 

 anemometer was erected at the Sydney Observatory about twelve 

 months ago, which I believe, gives entire satisfaction. 



In concluding this paper, I think I may reasonably urge upon 

 you the claims which Australian meteorology has upon you as a 

 scientific Society. "We are in a position to lend a helping hand 

 to a science, the promotion of which is of the highest importance 

 to the interests of the colonies. It is much to be regretted 

 that some of our colonists who have plenty of leisure and means, 

 do not come forward in the cause as earnestly as the many 

 in the noble country from which we are sprung, but it must be 

 remembered they have no encouragement. A noble example 

 would be shown by our Philosophical Society, if we should only 

 establish one meteorological station, and invite the co-operation 

 of observers in the colonies. The Government have done all 

 that can be expected of them, for, in addition to the Sydney 

 Observatory, they support meteorological stations at Armidale, 

 Newcastle, Bathurst, Goulburn, Deniliquin, Albury, and Cooma. 



