But all these troubles were removed when I knew my brother to be at no great distance, making observations with his various instruments on double stars, planets, and the like; and I could have his assistance immediately when I found a nebula, or cluster of stars, of which I intended to give a catalogue.

On the sixth day, I perceived another nebula, and on this occasion in a more promising direction.

But come; your pipe is out; you draw like a pump, without puffing even a nebula of smoke.

"The 19th was cloudy and the 20th the same, with the variety of occasional breaks, through which I saw the nebula, but not the comet.