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sninll proportion of iron salt i)reseiit, yct tlint siwli, on fiilling tloati, cnclosetl t.lic siisl~cntlctl tnnttcrs, wlictlicr of organic or tiiiiiernl origin, niitl tlius caiisctl their rciiintnl. Tlint a rclcrcncc to the rcsults of the nttnlyses of tho witcis from tho incclianicnl Iicnters nncl from tlic citlicr Itcntctl-writer s y i )lies, slto\vecj this coiicIiisivc1y. Tlint in iiicclinniciil lientors tlie tubes, dctubtless Iiy tlic constant currents of wnter, reninin clenii for :i lorig tiiiie, mliilst tlic sides beconic as its iioii-coiidiictiiig power rctniiis lieat. t ~i n t contctl with a tlc iosit, wliicli slioultl not bc r c i i i ~~c t l , inecliniiicnl Iientcrs, to Iio of the greatest use, would reqiiirc to ltnvc sotiie variety of liltcring nplinrntus cnlciiitii niid niagnesiuiit, niitl tlint, this would entail cstcnt, useless. \'itli 1inrnlliii litbricants tho condctisccl stcniii cnti lie uscd withoiit dnningc to tlic nttacltcd, to r e n i o \ ~ tho precipttiitctl ciirlmniitcs of
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A semimicro modification of the Olsen method was developed to include nitratenitrogen in the total soil nitrogen determination by the standard semimicro-Kjeldahl method. The modified method was found to include nitrate-nitrogen effectively from standard nitrate solutions and soils. It was significan
ago tlic largest phiit in Noiwray was of oidy 120 la\\*.$ ca ncity. A nitric ncicl factory at Lcgnnno, ncai ~~i P n n , mliicli hat1 ~iccn rising Pniiliug furnaces rol many ycnrs worked on that restricted scrricc.