TEACHING APPARATUS. 



853 



P. P. crucible and cover. 



Blowing machinefor do., with weights. 



Blast gas burner, 26 jets, with stand 



and crook. 

 Gas crucible furnace complete, large 



size. 

 Gas crucible furnace, complete, small 



size, and P. P. pots. 

 Gas muffle furnace, complete, large 



size. 

 Gas muffle furnace, complete, small 



size. 



Large muffle and bottle necked. 

 Small 



Large clay atmopyre. 

 Small 



Bone ash cupels. 

 Plattner's gold assay apparatus. 

 Pair cupel tongs, with shields. 

 tongs straight, No. 126. 

 bent, No. 127. 

 charcoal tongs bent, No. 



120. 



bent, No. 125. 

 bow, No. 128a. x 

 basket, No. 128. 

 bow, No. 124. 

 crucible tongs, No. 4,652. 

 flask tongs, No. 4,576. 

 Set (4), roasting dishes. 

 (3), cornet pots. 

 (5), scorifiers. 

 Wrought iron crucible. 



5> 



Iron cupel mould. 



Boxwood cupel mould. 



Ingot mould, conical form on foot. 







with two holes. 



three divisions. 



for 12 rods. 



Glass parting flask. 

 Mallet. 

 Pair boxwood crucible moulds, with 



three stamps. 



Cupeling furnace, with chimney. 

 Muffle for do. 

 B. P. tube for do. 

 Blowpipe set (pocket). 



in one tin case. 



in two tin cases in 



mahogany box. 

 in three tin cases in 



mahogany box. 



Major Ross's blowpipe set (with 

 extras). 



Wire stands. 



Aluminum plate. 



Glass beakers. 



G. S. blowpipe with platinum nozzle 



and stand. 

 Brass blowpipe lamp. 



stand. 



blowpipe. 

 Stand. 



Brass gas blowpipe. 

 Stand. 

 Brass Bergmann's blowpipe. 



German blowpipe. 

 Stand. 



Portable G. S. blowpipe with stand. 

 Brass 



Tin laboratory lamp. 

 Brass blowpipe on stand. 



gas blowpipe on stand. 

 Blowing apparatus. 

 Tin blowpipe lamp. 

 Brass stand. 



pocket blowpipe lamp. 

 Pair iron tongs, with spoon. 



brass 



crucible tongs. 



tongs, long points. 

 Platina spoon and cover with handle. 

 Pair brass tongs with ivory points. 



platina tongs. 

 Piece platina foil. 

 Pair G. S. crucible tongs, with plat. 



tips. 



Patina crucible and cover. 

 Set of three charcoal borers, with 



charcoal. 

 Set of Plattner's cupel supports. 



lead measure. 



Agate mortar and pestle. 2 inch. 



2| inch. 



Plattner's roasting furnace. 



brass sieve. 

 Platina spoon and handle. 

 Platnurn wire holder and wire. 

 Plattner's brass scoop. 



capsule support. 

 crucible support. 

 ,, mould, with box- 



wood stamps. 



mould for square blocks. 

 Albata spoon. 

 Ivory spoon. 

 Steel spatula. 

 Flat file. 

 Anvil. 

 Crushing mortar. 



