ON DEW, &c. 137 



from the bridge over the Thames at Blackfriars, 

 but not more than a mile and a quarter, from a 

 densely built part of the suburbs on the south 

 side of that river. The form of the garden was 

 oblong, its extent nearly half an acre, and its 

 surface level. At one end was a dwelling- 

 house of moderate size, at the other a range of 

 low buildings ; on one side a row of high trees, 

 on the other a low fence, dividing it from 

 another garden. If this fence had been absent, 

 the garden would have been on the latter side 

 entirely open. Within it were some fruit trees, 

 but, as it had not been long made, their size 

 was small. Towards one end, there was a grass- 

 plat, in length 62 feet, and nearly 1.6 broad, the 

 herbage of which was kept short by frequent 

 mowing. The rest of the garden was employed 

 for the production of culinary vegetables. All 

 of these circumstances, however trifling they 

 may appear, had influence on my experiments, 

 and most of them, as will hereafter be seen, 

 must have rendered the results less remarkable, 

 than they would have been, if they had occurred 

 on a wide open plain, considerably distant from 

 a large city. 



I now proceed to relate the influence, which 

 several differences in the situation, mechanical 

 state, and real nature of bodies, have upon the 

 production of dew. 



