546 



PHILOSOPHICAL TRANSACTIONS. 



[anno J748. 



§ Copper. Reynolds 



Cuprum. Villalpandus 



iEs. Glietaldus. Rose-copper. Ward. 

 C. Fine copper. L. An old cop- 

 per halfpenny, Charles 2d's coin. 

 Harris 



Copper in halfpence. L 



^s ; cuivre. Pelit 



Cuprum. Bacon 



Copper. Oxford Soc 



Cupnim Suecicum. Fahrenheit .... 



Id. Japonense. Fahrenheit 



Id. Suecicum. Muschenbr 



Common copper. L 



Brass. An old brass gold weight marked 

 XXXIII. Harris 



Aurichalcum. Bacon 



A piece of hammered brass. Harris 



JEs, airain, calaminae mixtum. Petit. 



Aurichalcum. Fahrenheit 



Brass hammered. J. C. Plate brass. 

 Ward 



Wrought brass. J. C 



Cast brass. L 



D° J. C. Ward 



D° Cotes 



Brass hammered. Reynolds 



D° cast. Reynolds 



A piece of cast brass. Harris 



(J Iron. Ferrum. Villalpandus.... 



Id. Ghetaldus 



9-127 

 9.100 



9.000 

 8.915 

 8.875 

 8.86(i 

 8.843 

 8.834 

 8.799 

 8.784 

 8.478 



8.830 

 8.747 

 8.66"0 

 8.437 

 8 412 



8.349 

 8.280 

 8.208 

 8.100 

 8.000 

 7-950 

 7.905 

 7.666 

 8.086 

 8.000 



Iron, forged. Reynolds 7-906' 



Ferrum. Petit 7 .875 



Id. Bacon 7.837 



Spanish bar-iron. L 7.827 



Swedish D°. L 7.818 



Ferrum. Fahrenheit 7.817 



Iron. Cotes 7.645 



D° of a key. J. C. Com. iron. Ward 7.643 

 A piece of hammered iron, perhaps 



part steel. Harris 7.600 



Iron cast. Reynolds 7 520 



D°cast. L 7.135 



Softest cast iron or Dutch plates. L. 6.960 



Steel. J.C. Ward 7852 



D" Cotes 7.850 



. . Spring temper. Hauksbee 7-809 



. . Nealed soft. L 7.792 



. . Soft. Hauksbee 7-738 



. . Hard. Hauksbee 7.704 



. . Hardened. L 7.696 



■y Tin. Reynolds 7.617 



Stannum. Bacon 7.520 



Id. Villalpandus. Freind . ... 7.500 



Etain d'Angleterre. Muschenbr.... 7.471 



Stannum. Ghetaldus. 7f 7. 400 



Id. Provinciae Indiae or Malacca. Fahren. 7.364 



Block tin. Oxf Soc. Ward. C. . . . 7.321 



Stannum Anglicanum. Fahrenheit . . 7.313 



Id. commune. Petit 7.312 



Id. purum. Petit 7-170 



Block or Grain tin. L 7.156 



TABLE II. — Of Minerals, Semimetak, Ores, Preparations and Recrements 0/ Metals, ^c. 



Bismuth. J. C 9-859 



D° Cotes 9.700 



D° or Tinglass. Boyle 9 550 



Tinglass. Reynolds 7.951 



Marcasita alba. Fahrenheit 9-850 



Mineral, Cornish, shining like a marcasite. 



Boyle 9060 



Calx of lead. Boyle 8.940 



Spelter solder. J.C 8.362 



Spelter. J. C 7.065 



Cinnabar common. Boyle 8.020 



Cinnabaris factitia. Muschenb. (if not a 



mislake for the last experiment) . . . 8.200 

 Cinnabar native, breaking in polished 



surfaces like talc. Davies 7-710 



D° Persian, breaking rough. Davies . . 7-600 



D° native. Boyle 7-576 



Cinnabaris nativa. Muschenb 7-300 



Cinnabar native, very sparkling. Boyle 7 060 

 D° native from Guinea. Davies 6.280 



Cinnabar of antimony. Harris 7-060 



n° another piece. Harris 7-043 



D° Boyle 7-030 



Cinnabar antimonii. Freind 6.666 



Cinnabre d'antimoiae. Muschenb. . . . 6.044 



Lead ore, rich, from Cumberland. Boyle 7.540 

 D" Boyle 7. 140 



The reputed silver ore of Wales. J.C. 7.464 

 The metal thence extracted. J. C. . . . 11 .087 



Regulus antimonii. Item Martis et Vene- 

 ris. Freind 7.500 



Id. Fahrenheit 6.622 



Id. Harris 6.6OO 



Id. per ae. Davies 4.500 



Silver ore, choice. Boyle 7.000 



D° another piece from Saxony. Boyle 4.970 



Lithargyrus argenti. Freind 6.666 



Lithargyrium argenti. Muschenb. . . . 6.044 



Id. Auri. Freind 6.316 



Id. Auri. Muschenb 6.000 



Minera antimonii. Davies 5.810 



Cuprum calcinatum. Freind 5.454 



Glass of antimony. Newton. C 5.280 



Vitrum Antimonii. Freind 5.000 



Id. per se. Boyle 4.760 



Tin ore, choice. Boyle 5.000 



D° black, rich. Boyle 4. 1 80 



New English tin ore, Mr. Hubert's. 



Boyle 4.080 



Tutty, a piece. Boyle 5.000 



