The American Journal of Science and ArtsS. Converse, 1860 - Geology |
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Page 23
... zinc ; Whitworth pro- vides for this difficulty by the use of pewter , which again necessitates a polygonal bore and a regular twist . Finally , during the last few years many of our best gunsmiths and marksmen have endeavored to ...
... zinc ; Whitworth pro- vides for this difficulty by the use of pewter , which again necessitates a polygonal bore and a regular twist . Finally , during the last few years many of our best gunsmiths and marksmen have endeavored to ...
Page 123
... zinc appear . The heat is then to be moderated , the tem- perature remaining as high as possible without volatilizing the zinc ; af ter a quarter of an hour the crucible may be withdrawn from the fire . It contains a well fused metallic ...
... zinc appear . The heat is then to be moderated , the tem- perature remaining as high as possible without volatilizing the zinc ; af ter a quarter of an hour the crucible may be withdrawn from the fire . It contains a well fused metallic ...
Page 124
... zinc thrown in , the dianic acid in a few moments becomes smalt blue , even dark blue , and retains this color for some time on addition of water ; but the liquid passes through the filter colorless . In this respect , dianic acid ...
... zinc thrown in , the dianic acid in a few moments becomes smalt blue , even dark blue , and retains this color for some time on addition of water ; but the liquid passes through the filter colorless . In this respect , dianic acid ...
Page 128
... zinc in damp powder , 26.00 Chlorid of zinc in solution as patented by Sir Wm . Burnett , 37.00 Sulphate of copper , 39.00 The sulphates of zinc , iron , and alumina ; common gypsum ; sulphuric , sulphur- when employed comparatively ...
... zinc in damp powder , 26.00 Chlorid of zinc in solution as patented by Sir Wm . Burnett , 37.00 Sulphate of copper , 39.00 The sulphates of zinc , iron , and alumina ; common gypsum ; sulphuric , sulphur- when employed comparatively ...
Page 159
... zinc ( SbZn2 SbZn3 ) , designed to show that crystalline form is not a necessary indi- cation of definite chemical composition . A copy of this paper from the Author reached us at too late a date for publication in the present num- ber ...
... zinc ( SbZn2 SbZn3 ) , designed to show that crystalline form is not a necessary indi- cation of definite chemical composition . A copy of this paper from the Author reached us at too late a date for publication in the present num- ber ...
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acid Alethopteris alloy American animal appear Arago arch arsenic aurora axis ball Berghaus Annalen bituminous Brgt bright brilliant Cape Cape Henry carbon carbonic acid catalogues chemical clouds coal coal-tar color containing Cordaites crystals diameter direction disinfection distance distillation earth eupion experiments fact feet fossil genera genus Göpp Gulf Stream heat horizon inches initial velocity Jour Journal Kämtz latitude Lepidodendron light Lsqx mass matter metal meteor miles mineral motion nearly nebular hypothesis Neuropteris Noble County northern observations obtained Oil-Coal organic oxygen paraffine Pecopteris peculiar phenomena plants portion present produced Prof rays remarkable rifle river seen Semi-minor axis Sept shales Sigillaria solar species specimens Sphenopteris stars Sternb stone strata streamers substances surface Survey temperature theory thickness tion toises Unifilar vapor volatile whole zenith zenith telescope zinc