34 



in the " Dioecesis Tuamensis," of which the " Extenta et 

 taxatio facta fuit, 28mo. Eliz." So that it seems highly pro- 

 bable that " Bullyngiona" may have been but an arbitrary 

 Latinization of the same name by the artificer by whom the 

 seal was made, possibly a monk of the religious house to 

 which it belonged. 



Mr. Clibborn made the following communication on the 

 subject of the Ley den Jar. 



" In Brand's Manual of Chemistry, vol. i., Srd Edition, 

 p. 76, I find it stated, that, ' if one Ley den jar be insu- 

 lated, with its internal surface connected with the positive 

 conductor, another jar may be charged from its exterior 

 coating ; and if this second jar be insulated, a third may be 

 charged from its exterior coating, and so on for any number 

 of jars, provided always that the exterior coating of the last 

 jar be connected with the ground.' 



"As my electrifying machine was but small, it occurred to 

 me that I might economise both time and labour by con- 

 structing a battery of jars so arranged that I should be able 

 to take advantage of this principle, and make one jar charge 

 another, instead of my being obliged to charge the whole 

 series ; for, though they are all connected together, and 

 charged by the same operation in the common electric bat- 

 tery, yet the time and labour consumed in charging the 

 battery is exactly the same as if each jar were charged sepa- 

 rately and then added to the series. A great saving of labour 

 and time would have been effected had the arrangement of 

 jars answered, for it was exactly the same as that described 

 by Brand, so far as the charging part of the apparatus was 

 concerned ; but when the jars were loaded, or rather should 

 have been loaded, they were made to turn through a qua- 

 drant, and form a new arrangement, by which all their out- 

 side coatings were connected together by a common con- 

 ductor. A similar arrangement connected all their inside 



