[The health of the household] / by Henry Simpson.

  • Simpson, Henry.
Date:
[between 1800 and 1899?]
Catalogue details

Licence: Public Domain Mark

Credit: [The health of the household] / by Henry Simpson. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    3/18 (page 9)
    a gas which serves to dilute the oxygen, and is marked by vm negative properties when it is uncombined chemicallv with an^ other body. The air contains hkewise small quan fies of car^ borne acid gas, the vapour of water, a little ammonia and some other bodies m very small proportions. Naturally the CO carbonic acid) IS in very small quantity also, but it increases in owns and close buildings. Many years ag^ a FrenS chemist (Leblanc) examined the air in different plfces to ascertain proportion of CO. In the hall of the Military School at Paris he found I part in i,ooo. In an infant school, the door ha f open t parts. In a hospital ward, 8 parts. Remember this was in Paris^ bad reV?/''?r ^he hospitd ward as bad, the Chamber of Deputies was worse, and showed 2K parts fn i,ooo. But the most vitiated air was in the top galirof a Nowthis CO is°' ' '''''' '!i 43 t7x,ooo! spr ;?:s'i?it^errr o^y' l^^^j^^, ^^^^^ fim! T ? ^'S amount up to anything like the figures I have quoted, you have other impurities iJtrodfced of a t Th?^''^'y -hich I shaU shortly refer. The impurities m air may, however be due^^hh.JZ minute particles suspended in it nrTf^L a. familiar with the app^earance wh ch a ray of su^^ you look across it w^en it passes into\7oom Th ofgh S c::i^^:^^z:!'^^ ^^^^^^ perhaps all. We Ua?he these n. enough,'but not our fo'od and om^'mk td' ^e Sis^Lrtharh '^^ times follows, but that t is so ra^e ThlL 5 f them mineral as of nf If , particles are some of everyX&lt 'nt° f™cfir^ln1 T 7^ 1^' you have of course in Iaa,- ■ Manchester and of ottr th V„1 r 'T P^'^es of cotton, wool, minute m croscoS'„eaTu™es a^^^^^ i™' 8'™^ °f aniu,a, tissues afe^S™'and' ? sS 1 c VCh^^^