CHAP, ii.] . Employments at Slough. 73 



llth. I completed to-day the catalogue of the first 

 thousand. 



12t/i calculated 200 nebulae of the second thou- 

 sand. 



: 13th. Professor Kratzensteine, from Copenhagen, was 

 here to-day. In the evening I saw the comet and swept. 



14th I calculated 140 nebulae to-day, which 



brought me up to the last discovered nebulas, and, therefore, 

 this work is finished. 



15th>, I went up with Mrs. H. to Windsor to pay some 

 bills and to buy several articles against my brother's return. 



IQth. . . . * my brothers returned about three in the 

 afternoon. 



It would be impossible for me, if it were required, to give 

 a regular account of all that passed around me in the lapse 

 of the following two years, for they were spent in a perfect 

 chaos of business. The garden and workrooms were 

 swarming with labourers and workmen, smiths and carpenters 

 going to and fro between the forge and the forty-foot 

 machinery, and I ought not to forget that there is not one 

 screw-bolt about the whole apparatus but what was fixed 

 under the immediate eye of my brother. I have seen him 

 lie stretched many an hour in a burning sun, across the 

 top beam whilst the iron work for the various motions was 

 being fixed. 



At one time no less than twenty-four men (twelve and 

 twelve relieving each other) kept polishing day and night ; 

 my brother, of course, never leaving them all the while, 

 taking his food without allowing himself time to sit down 

 to table. 



The moonlight nights were generally taken advantage of for 

 experiments, and for the frequent journeys to town which lie 



