Mathematical Proceedings Volume 1-2.cCambridge Philosophical Society
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Author: Cambridge Philosophical Society
Number of Pages: 184 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Format: Pdf
ISBN: 9781130518450
File size: 10 Mb
File Name: Mathematical.Proceedings.Volume.1-2.pdf
Download Link: Mathematical Proceedings Volume 1-2
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1863 Excerpt: ...was difficult to distinguish." Schumacher considered it his duty as editor to insert the communication, but evidently did not give credit to it (Astron. Nachr. No. 273). In vol. ii. of the Correspondence between Olbers and Bessel, mention is made in p. 162 of an observation at Vienna by Steinhubel, of a dark and well-defined spot of circular form which passed over the sun's diameter in five hours. Olbers, from these data, estimates the distance from the sun to be 0-19, and the periodic time thirty days. It is remarkable that Stark saw about noon of the same day a singular and well-defined circular spot, which was not visible in the evening. This is one of the instances in vol. xx. of the Monthly Notices of the Astronomical Society. These accounts appear to prove that transits of dark round objects across the sun are real phenomena; but it would perhaps be premature to conclude that they are planetary bodies. If the object observed by Lescarbault be a planet, it is certainly very surprising that it has not been often seen. Schwabe, after observations of the sun's face continued through thirty-three years, has recorded no instance of such a transit. It is probable that now attention has been especially drawn to the subject, future observations, accompanied by measures (of which Lescarbault's are the first instance), may throw light on the nature of these phaenomena. April 23, 1860. Professor De Morgan read a paper " On the Syllogism, No. IV., and on the Logic of Relations." In the third paper were presented the elements of a system in which only onymatic relations were considered; that is, relations which arise out of the mere notion of nomenclature--relations of name to name, as names. The present paper considers relation in general. It would ...
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