. Report of the fifty-fourth meeting of the British Association for the Advancement of Science [microform] : held at Montreal in August and September 1884. Congresses and conventions; Science; Congrès et conférences; Sciences. â ^li \M 1 fl 776 REPORTâ188-i. The result of the analysis was to show that the ash of the ' serum '(?) contained â¢508 oxide of coppei*. This is considerably in excess of the maximum found by Genthâviz., '338 per cent, iu a duplicate determination of the copper in sample A. The method of estimating the copper, shortly stated, was as follows: 500 serum were evapor
. Report of the fifty-fourth meeting of the British Association for the Advancement of Science [microform] : held at Montreal in August and September 1884. Congresses and conventions; Science; Congrès et conférences; Sciences. â ^li \M 1 fl 776 REPORTâ188-i. The result of the analysis was to show that the ash of the ' serum '(?) contained â¢508 oxide of coppei*. This is considerably in excess of the maximum found by Genthâviz., '338 per cent, iu a duplicate determination of the copper in sample A. The method of estimating the copper, shortly stated, was as follows: 500 serum were evaporated to dryness over the water-bath, the residue then incinerated ond weighed, the resulting ash dissolved in hydrochloric acid with a slight addition of nitric; the copper then precipitated as sulphide by passing a stream of SIL cjas through the liquid; the precipitate collected and washed v,-ith SIl., water (due precaution being taken to prevent oxidation) ; tiie iilter-papor and sulpliide wure then transferred to a platinum capsule and burned; this ash redissolved in :'trie acid and precipitated (this time as black oxide) by boiling with a slight excess of caustic potash, the precipitate collected, and washed, and burned as before, after moistening with nitric acid. As far as the salts are concerned the composition of Limulus .serum appears to be more like sea water than Mammalian serum; the latter contains about 28'.') per cent, chlorine, with only a little more than ^ per cent, of magnesia, whereas the former contains about 'm'Jo per ciMit. and C)-2'> pi-r cent, magnesia. Some interesting points remain to be noted with rcfereuce to tlie organic constituents of the blood; the coagiilum obtained from the freshly drawn blood appears more albuminous tlian fibrinous; the microscopic appearances presented during its formation were not characteristic of fibrine, and the fresh clot itself gave none of the recognised fibrine reacfiors; tlie expressed blue liquid ga
Size: 1057px × 2365px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1885
