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[[page number]] 92 [[/page number]][[in right hand corner]]
[[underlined]] of the semidifference of latitudes [[/underlined]]; and project on the conic surface generated by xt.  But here the degrees of latitude towards the middle will fall short of their just quantity, and at the extremities exceed it: which hurts the eye.  Artists may use either rule: or, in most cases, they need only make Cx to CM as the arc ML is to its tangent, and finish the map; either by a projection, or, as in the first method, by dividing that part of xt which is intercepted by the secants thro' L and l, into equal degrees of latitude.
    Mr. Mountaine justly observes, "that my rule does not admit of a zone containing N. and S. latitudes."  But the remedy is, [[underlined]] to extend the lesser latitudes to an equality with the greater; that the cone may be changed into a cylinder, and the rhumbs into straight lines. [[/underlined]]
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[[left margin]] Quantity of expansion of metals by heat. V.p.^4.140. and 155. & 157. [[/left margin]]
In No. 81 Vol. 47. of the Philos. Trans. for 1751 & 1752. p.485. J. Ellicott, F.R.S. gives an account of many experiments about the expansion of different metals, made into "bars of the same dimentions as near as possible, and found upon a medium, their several expansions by the same degree of heat to be as follows;
Gold 73   Silver 103    Brass 95   Copper 89    Iron 60   Steel 56    Lead 149."
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[[left margin]] Revolutions of a Top are more in [[underlined]] vacuo [[/underlined]], than in open air. [[/left margin]]
No. 56 Vol. 47 of the Philos. Trans. for 1751 & 1752. p.352 is An account of an [[underlined]] horizontal Top [[/underlined]], invented by Mr. [[underlined]] Serfon [[/underlined]], by Mr. [[underlined]] James Short [[/underlined]], F.R.S. wherein is, "By repeated trials it had been found, that the top, when set a-going in the open air, played or spun during the space of 35 minutes of time, from the instant of its being set up till it had lost the circular motion: but we found, that in the exhausted receiver it played or spun during the space of two hours 16 minutes (preserving a perfect horizontality for the space of 3/4 of an hour); and therefore, that the air has no share at all of the cause of its horizontality, and that the air is a great impediment to its motion."
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[[left margin]] Of Voluntary muscular Motion.
See Philos. Trans. Abr. Vol.X. Part 3, 4, p.1114 to 1204.
Order, treated in.[[/left margin]]
No. XLVII. Of the Philos. Trans. for 1751 & 1752 p.305. Vol.47 ----[[underlined]] Observations and Experiments upon [[/underlined]] animal Bodies, [[underlined]] digested in a philosophical Analysis, or inquiry into the Cause of [[/underlined]] voluntary muscular Motion; by Charles Morton, M.D. F.R.S.
  Read Dec. 5. 1751. THE paper proceeds in the following order:
[[underlined]] The Problem [[/underlined]], or question proposed.
[[underlined]] Observations [[/underined]] and [[underlined]] Experiments [[/underlined]], illustrating the structure and use of the parts concerned.
[[underlined]] Two Lemma's [[/underlined]], with demonstrations concerning [[strikethrough]] anatomic [[/strikethrough]] automatic or involuntary motion.
Observations proving that the sensations, of which we make cognizance, are merely relative.

Transcription Notes:
Instances of the use of old style long "s" exist. Transcribed using modern double "s" format.