Page talk:Experimental Determination of the Velocity of Light (1878 manuscript)/10

must add interspersed words
On this page, Michelson interspersed some words, some of them in faint pencil, one of them in ink as a correction to a strikeout. I'm pondering how to mark this up. --Mike O&#39;D 02:15, 14 March 2008 (UTC)


 * Five different lines on the page have text inserted above the text written on the line.


 * In one case: "is" written in ink above the struck out "was", this is pretty clearly a correction made by Michelson, possibly as he was writing the line, possibly on proofreading. In this case "was" is struck out with a single horizontal line (while he used a double strike on previous pages).


 * In the other 4 cases, the insertions are fainter than the rest of the text, and appear to be in pencil. It seems likely that they are comments, rather than corrections, and I'm not confident that the handwriting is Michelson's. They are much sloppier than the main text, which could be due to his attitude when writing them, or could be due to a different scribe.


 * The last two, at the end of the 3d line from the end of page and the beginning of the 2d line from end of page, are likely to be connected in meaning.


 * I marked the 4 fainter inscriptions as spans, with class=pencil, hoping to figure out how to deal with them later.


 * I could not decipher all characters in any of the 4 pencil inscriptions. I entered tildes "~" for illegible portions, using a number of "~"s corresponding to the apparent number of characters. I marked these tildes as spans, with class=illegible.


 * In the second insert, above the word "lens", the illegible portion looks like a squiggly line, and I cannot even distinguish characters. I conjecture that the text is "2" focus", because that might make sense.


 * In the other inserts, the illegible characters are fairly discrete, and my count is probably fairly close, but I have no conjecture for the intended text.


 * Each of the insertions is written at a vertical level fairly evenly placed between the line in which it is inserted and the base of the line above. They are written directly above text in the lower line. I marked them as spans, with style="vertical-align:50%", which corresponds fairly well to the vertical placement. I haven't figured out how to mark up the horizontal placement.

--Mike O&#39;D 03:43, 14 March 2008 (UTC)

check "Grunow"
Line 2, I am not certain of the name "Grunow." the name is written confidently, so I expect that Michelson had it correct, but the sequence of humps and loops is a bit hard to parse, and the descender from the "g" at the end of "measuring" in the previous line tangles with the "u". We should check that "Grunow" is the correct name (probably in the published article). --Mike O&#39;D 02:17, 14 March 2008 (UTC)

period, degree mark out of order
On the 8th line from the end, the "°" degree mark on "45°" appears to the right of the period at the end of the sentence. But the text is all slanted to the right, and I take this for a typical peculiarity of penmanship, and transcribe the period after the degree mark. --Mike O&#39;D 02:20, 14 March 2008 (UTC)