GAS LIGHT FROM COAL. 85 



themselves no trouble to look after its nest or brood, neither 

 their flesh nor eggs being fit to be eaten. They build in re- 

 mote places near fresh water;" so near, as we learn elsewhere, 

 that the bird may almost slide into the water. It is not per- 

 haps easy to determine, whether, by the term /om, Horrebow 

 here means the proper immer, or the northern diver; but it 

 matters not. As the habits of both are in other respects 

 much alike, and as the breeding of the northern diver is 

 held to be of the same mysterious nature as that of the im- 

 iner, we may reasonably conclude, that both perform the 

 offices of incubation in places of the same sort, and in a 

 manner somewhat similar. 



Upon consulting Colonel Montagu's Ornithological Die- Col, Montagu, 

 tionary, (2 vols, 8vo, 1802) a work in general of the great- 

 est accuracy, I find, that in regard to the immer, without 

 taking notice of any of the fabulous reports above detailed, 

 he merely states, that " it makes a nest on the water, placed 

 amongst the reeds and flags," in fresh water lakes. He 

 does not, however, mention any authorities. As to the 

 northern diver, he observes, that '* it is not uncommon in 

 Iceland and Greenland, where it breeds in the fresh waters, 

 and is said to lay two large eggs, of a pale brown colour, in 

 the month of June." He mentions that this bird seldom 

 leaves the water; but that, in the spring of 1797> one was A northern di~ 



taken near Penzance in Cornwall, at some distance from ^ er taken some 



T -,. ,? ,. • • ■ in r i distance from 



water. It appeared incapable of raising itself from the water. 



ground, yet did not seem to have any defect. It lived for 



six weeks in a pond, eating fish thrown to it. 



n. 



Description of an Apparatus for making carburetted Ilidro- 

 gen Gas from Pitcoal, and lighting Manufactories with it. 

 By Mr. Samuel Clegg, of Manchester** 



Dear Sir, 



HEN your son was in Manchester, he called to see Mr Clegg 

 my nephew, Samuel Clegg's, improved gas lights, and was 



* Trans, of Soc. of Arts, vol. XXVI, p. 202. The silver medal wac 

 toted to Mr. Clegg for this communication. 



desirous 



