The Celestial Worlds Discover'd

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1722 edition. Excerpt: ... Book2.me notice of by Letters in the Year VW i684 j but they are scarce ever to be seen, and I can't positively fay, I had everthat Happiness; but am as fatisfied that they are there, as if I had j not in the least suspecting the Credit of that worthy Man. Nay, I am afraid there are One or Two more still behind, and not without reason. For between the Fourth and Fifth there's a Distance not at all proportionable to that between all the others: Here, for ought 1 know, there may be a Sixth; or perhaps there may be anothet without the Fitrh that may yet have escaped us: for we can never fee the Fifth but in that part of his Orbit, which is towards the West: for which we shall give you a very good reason. Perhaps when Saturn comes into the Northern Signs, and is at a good height from the Horizon (for at the writing of this he is at his lowest) you may happen to make some new Discoveries, good Brother, if you would but make use of your two Telescopes of 170 and 3i0 Foot long j she longest, and the best I believe now in the World. For tho' we have not Book2. yet had an opportunity of observing the Heavens with them (as well by reason of their Unweildiness, as for the Interruption of our Studies by your Absence) yet I am satisfied of their Goodness by our trial of them one Night, in reading a Letter at a vast distance by the Help of a Light. I cannot but think of those times with Pleasure, and of our diverting Labour in polishing and preparing such Glasses, in inventing new Methods and Engines, and always puihing forward to still greater and greater Things. But to return to the Figures, of which there remains something further to be said. I have there made the Diameter The proof Jupiter about two third parts of our'TM ? distance from the Moon: ..