I had frequent opportunities for doing this when I was obliged to run to him with my papers or slate, when stopped in my work by some doubt or other. I cannot leave this subject without regretting, even twenty years after, that so much labour and expense should have been thrown away on a swarm of pilfering work-people, both men and women, with which Slough, I believe, was particularly infested. For at last everything that could be carried away was gone, and nothing but rubbish left. Even tables for the use of workrooms vanished: one in particular I remember, the drawer of which was filled with slips of experiments made on the rays of light and heat, was lost out of the room in which the women had been ironing. This could not but produce the greatest disorder and inconvenience in the library and in the room into which the apparatus for observing had been moved, when the observatory was wanted for some other purpose; they were at last so encumbered by stores and tools of all sorts that no room for a desk or an Atlas remained. It required my utmost exertion to rescue the manuscripts in hand from destruction by falling into unhallowed hands or being devoured by mice. But I will now return to July, 1786, when my brother was obliged to deliver a ten-foot telescope as a present from the King to the Observatory of Göttingen. Before he left Slough on July 3rd, the stand of the forty-foot telescope stood on two circular walls capped with Portland stone (which, cracking by frost, were afterwards covered with oak) ready to receive the tube. The smith was left to continue to work at the tube, which was sufficient employment cut out for him before he would want farther direction. The mirror was also pretty far advanced, and ready for the polish, for I remember to have seen twelve or fourteen men daily employed in grinding or polishing. [Sidenote: 1786. _Life and Work at Slough._] To give a description of the task (or rather tasks) which fell to my share, the readiest way I think will be to transcribe out of a day-book which I began to keep at that time, and called “Book of work done.” _July 3._—My brothers William and Alex. left Slough to begin their journey to Germany. Mrs. [Alex.] Herschel was left with me at Slough. By way of not suffering too much by sadness, I began with bustling work. I cleaned all the brass-work for seven and ten-foot telescopes, and put curtains before the shelves to hinder the dust from settling upon them again. _4th._—I cleaned and put the polishing-room in order, and made the gardener clear the work-yard, put everything in safety, and mend the fences.