A new exposure meter
โ Scribed by Watrins, Alfrd
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1890
- Weight
- 352 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0368-4075
No coin nor oath required. For personal study only.
โฆ Synopsis
\'hen qir.itf Iinnl, it wiis tlieii either pliicctl iiiider ii belljiir coiitniiiiiig ii dish of wiitcr or csposed to tlic air of tlie roiii.
Iri riiost ciircs 11 dupliciitc slide wiis rriiitlc iuitl wiis kept iii tlie dcsiccntor for coiiiparisoii. It woiiltl lie tedious CU rccoiiiif 1111 tlic csperiiiiciitri, iiiitl 1 iiierclygivc tlic rcsiilts. I l h t coiiiliiirctl pilc lioilcil oil, liest coliiil oil vnriiisli, niiilicr tlissolvcrl in oil, iiinlicr tlissolvcd iii tur~iciitiiic, coiiiiiioii rosiii iii tiirpciitiiic, iiiitl iii:istic in tiirl~ciitiiic.
Tlic niiibcr iii tiirliciitiiie reiii:iiiictl iiiicliiiiigc~l.
Tlic otlier tiirliciitiiie viiriiisliccl tiiriicd :in o~iiiqiie liliiis11grceii.
l'lic oil niitl oil vnriiislics tiiriicil :I tr:iiisp:irciit ~i d c gwrii. 011 iicst csniiiiiiiiig tlicse rliilcs iiiiilcr tlic iiiicrnscolie, II curious tlitTcrciiee prcsciitcd itself. 111 the ciise of tlic oil niid oil mriiislics, ii iiiiiforiii cliniigc liiiil tnkeii pliicc, tlic copIicr siillilintc liciiifi qqiiirciitly coiripletcly Iiytlnitcd, iiiitl Iicrc n i i d tlicrc pcrfcct erystiils of rii1pIi:itc of copper coiiltl IlC seeii.
Iii tlic CIISC, Iiocvcvcr, of tlic tiirpciitiiic viiriiislies, tlic siirfiicc coiisirtcil of pl:iiics of iiii;iltrretl siilpliiitc, with coiics of siilpli:itc of eolipcr crystiils risiiiK Iicrc wit1 tlicrc oii tlic wiirfncc, iiiiikiiig tlie wliolc siirfiicc roii~li :is sceii iiiiilcr the inicroscopc. 111 oiily oiic cwc wit of tlirce tlic iuiilicr iii tiirliciitiiic wliowetl II siiiiiliir ~ip~ieiimiiec over pirt of t lie siirfiicc.
๐ SIMILAR VOLUMES
in nioring tlic ndcption of tlic Ecport of Council, is rcportcd to linrc snid tlint 'f it u'n9.n lcttcr from JIr. Rcid to Lord Rnylcigh which induced tho Roynl Socict,y to nppoint two rcprcscntntivcs from thnt Socioty on tho Hoard." Tlic nctunl tcst wns ns follows :-" It wns duo to tlic nctioii of J
Gieserof the U. S. Department of Agriculture. Gieser is the experienced chief pilot of the Division of Grasshopper Control in the Bureau of Entomology and Plant Quarantine. He has been flying for 19 years, and for 7 years has been specializing in insect control by means of aircraft. In suggesting t