698 SEC. 14. METEOROLOGY. 



2851a. Stutter's Self-recording Ham Gauge. 



J. J. Hicks. 



This is a step in the direction of cheapness without sacrificing efficiency. 

 An eight-day clock rotates a funnel, the tubular end of which passes 

 successively over the openings of 12 or 24 glass jars numbered to correspond 

 with the hours of the day. The funnel-shaped openings over each jar being 

 brought to a knife edge, a well defined separation is effected, so that each jar 

 receives the rain for each hour, and the sum of their contents gives the rain- 

 fall for 12 or 24 hours. 



2851b. Beckley's Self-recording Ham Gauge, as used 

 at the observatories in connection with the Meteorological Office. 

 The Meteorological Committee of the Royal Society. 

 This instrument is described in the report of the Meteorological Committee 

 for 1869. 



The rain is delivered into a receiver floating in mercury. As soon as 

 0-2 in. of rain has been collected a syphon arrangement is brought into play, 

 and the receiver is emptied and rises to its original position. 

 The motion of the receiver is recorded on paper by a pencil. 



2852. Glaisher's Bain Gauge. Francis PastoreUi. 



This instrument has a greater internal depth, the coned part being 3 inches 

 from the surface ; in this respect it more resembles the Admiralty pattern ; it 

 prevents heavy rain splashing over, and consequent loss. 



2852a. Mountain Ham Gauge. Capacity 48 inches. Pat- 

 tern employed in the English lake district and at very wet moun- 

 tain stations in Wales and Scotland. G. J. Symons. 



2852b. Engineer's Bain Gauge. Capacity 12 inches. 

 Adapted for rough observations in ordinary hilly districts. 



G. J. Symons. 



2852c. Glaisher's 8-inch Bain Gauge. Adapted for, and 

 largely used by, private observers. G. J. Symons. 



2852d. Snowdon Pattern Bain Gauge, originally designed 

 for use in North Wales, the deep cylinder being added to secure 

 accurate observations during snow. This gauge is now in general 

 use in all parts of the British Isles. G. J. Symons. 



2852e. Indestructible Monthly Bain Gauge for private 

 observers. G. J. Symons. 



3852f. Copper Bain Gauge, Glaisher's form. 



E. Cetti and Co. 



2852g. Electrical Self-registering Bain Gauge. 



Ycates 8? Sons. 



The peculiarity of the above is a novel form of rocking bucket, the parti- 

 tion of which is so constructed that it will register correctly, no matter at 

 what rate the rain may fall. 



