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Cambridge sketches (ed. Estelle M. H. Merrill), chapter 11 (search)
ful shade of magnificent old trees. We have the grounds on our left for some time before we reach the entrance. Inside, we find it like a park. Still walking up hill we approach the Observatory, in front of which is the pleasant home of Professor Pickering, the director. Above and behind towers the great dome. Near by is a smaller dome. Off to the right is a substantial brick building evidently belonging to the observatory; and on reaching the top of the hill we see that behind, in theometers have been devised here, each adapted to some particular kind of work. A large variety of these is used with the large telescope. If none of the photometers in use seems to be exactly what is wanted for a particular piece of work, Professor Pickering or one of the staff invents a new one. The first one made was called A, and for a long time each new one received the succeeding letter, until the alphabet was exhausted. Now there is no special designation. There is another instrumen