Viewing page 41 of 140

This transcription has been completed. Contact us with corrections.

37 

But if that glass is quite full and that ye water passeth above ye brim without running over as may easily be done, and as is seen in ye following figure where ye water makes a convexity from L to ye side of ye glass B, then when ye bowl [[sic, for ball?]] E shall be advanced until ye section H I K incounters ye convexity L B, as in P, that point P shall be lower

Fig I

[[image: Drawing of two balls E E floating in a pan B B of water.  The surface of the water is a curving line rising from the left edge to high point L above the line and P below the line, then downward into a depression H I K containing a ball E, progressing in a straight line to a downward curve into another depression touching B containing a ball E.  Horizontal dotted lines from H to K and from the beginning of the right edge depression to side B.]]

than ye point H of ye other side ye bowl;  and by that means ye ball shall be found in a steep place wch shall be yet ye greater when ye same section shall approach nearer ye to B, and that steepness shall be more stiff when ye ball toucheth ye glass at ye point B, as is seen in ye same figure from ye other side of ye glass.

  For ye same reasons when ye two of these balls are put some what near one ye other they joyn:  for let ye line A C D E F B be ye level of ye surface of ye water, C A (F) D E D F ye two holes wch ye balls make, and ye point E ye intersection of ye holes, it is evident that ye point E will be lower than ye level of ye water A C F B, and by consequence will

Fig III 

[[image: Drawing of two balls, one above, one below a sinusoidal line A B. The ball on the left E sits in a depression F G H, transitioning at C and rising to B, down to D. There is a horizontal dotted line from F to D.]]

have a descent one both sides;  wch makes ye balls run till they meet one ye other as may be seen in that same figure.  But if one of ye balls is wet so that ye water sticks to it, they will push back one ye other;  wch is proved after ye same manner;  for in ye wet ball B in ye following figure there is made and elevation of water as C B and B D, and ye other a hole as F G H and if

Fig II

[[image: drawing of a line A C F B with three dips in it: C a E, H b F and F B.  Lines C a E and H b F intersect at point e.  The first two dips are empty, the third has two balls in it.]]

we push ye one towards [[strikethrough]] between [[/strikethrough]] ye other, ye water shall be elevated more towards C between ye two balls and in greater quantity wch shall make ye balls be pushed back one from ye others.

  But if ye two balls in ye precedent figure are moistened, they will approach one ye other, because of ye concavity wch remains between them, and will joyn by ye same cause as two

Fig IV 

[[image: drawing of a line A E with two humps B and D touching at C arching over two circles (balls).  There is a horizontal dotted line aligned with A E passing through the two circles.]]

drops of water joyn together and make one drope, for ye ^[[two]] elevations of ye water B C, c D in ye following figure, are as two half drops wch ought to joyn together in their [[?touching]] never go little

Transcription Notes:
mandc review: Caution: there may be some errors in the ms regarding "Fig. 1" starting "when ye bowl (ball?) shall be advanced until ye section H I K incounters ye convexity L B, as in P, that point P shall be lower than ye point H of ye other side of ye bowl...." Doesn't seem to make sense. It appears that the depression on the right should have a lablel "P." Note also that Fig III precedes Fig II. Note also that there are two point "B's" in Fig III. Added detailed image descriptions and corrected mislabeled image points (H I K for H J K, etc. http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=%2Fpermanent%2Flibrary%2FQERNH1MN%2Fpageimg&start=11&mode=imagepath&pn=119&ww=0.1372&wh=0.0829&wx=0.4763&wy=0.8306