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2,059 results
  1. NLM Digital Collections - Evaluation of the industrial hygiene problem of the State of Colorado 
    Publication: Denver, Colorado : State of Colorado Board of Health, 1939
    ... 838 13 17 1 6 - 347 3 24 Silica Dust 6374 2546 22 301 - 433 2171 144 ... 4 .1 .5 - 13.8 .1 1.6 Silica Dust 20.5 55.3 2.9 31. ... 12.2 .2 .2 * .1 - 5.1 « .3 Silica Dust 6374 39.9 • 3 4.7 - 7. ...
  2. ... principle, lignin, salts of potassa and lime, and silica; and thinks that a vinegar or ointment of ... various saline substances, besides free malic acid and silica. Dr. Probst, of Heidelberg, afterwards found in it ...
  3. ... temples, theatre's, amphithe- atres, circuses, naumachiae, porticoes, ba- silica?, baths, gardens, triumphal arches, columns, sewers, aqueducts, sepulchres, & ...
  4. ... third part, by weight, of this principle; for silica, carbonate of lime, and alumina, the three most ... Theoretical Geology, p. 8.- Lond. 1834.) calculates that silica alone constitutes " forty-five per cent, of the ...
  5. NLM Digital Collections - A system of chemistry, in four volumes (Volume 1) 
    Publication: Philadelphia : Printed and published by Abraham Small ..., 1818
    ... Meyer,** that the fluoric acid of Scheele contained silica as a constituent, and Dr. John Davy ascertained the proportion of fluoric acid and of silica, that exist in the acid of Scheele,ff ...
  6. NLM Digital Collections - A dictionary of arts and sciences (Volume 2) 
    Publication: Philadelphia : Published by Isaac Peirce ..., 1815-1816
    ... saclactic acid, and traces of phosphoric acid and silica. But all these ingredients are not essential to ... is composed of 58.25 alumina 38.00 silica 3.75 a trace of iron, and loss. ...
  7. ... a lung disease caused by breathing in (inhaling) silica dust. ... Silica is a common, naturally-occurring crystal. It is found in most rock beds. Silica dust forms ...
  8. ... they are combined with oxide of iron and silica. They are separated by means of their copper ... the ashes of wheat, we find abundance of silica, phosphoric acid, magne- sia, lime, and potash. If ...
  9. NLM Digital Collections - Human physiology (Volume 1) 
    Publication: Philadelphia : Lea and Blanchard, 1850
    ... phosphate of lime 136*509 grains; and of silica 219*548 grains; in the whole 356*057 ... lime; and she passed 185*266 grains of silica. The fixed parts, thrown out of the system ...
  10. NLM Digital Collections - Syllabus to lectures on chemistry 
    Publication: Charleston, S.C. : S. Babcock & Co. ; New York : Wiley & Putnam ; New Haven : B & W Noyes, 1841
    ... to 3 6. The lightest kind consists of silica'and potassa ; that with lime is rather heavier, ... 07 0.40 Magnesia, - " .22 Alumina, ox. iron, silica and phos. lime, ^ ^ Salts and volatile oil, - ^_^ „,_„. 17. ...
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