BAIR.D &TATLOCK (LONDON) LTD. 



MINERAL CRYSTALS. 



6287 s 

 6288 s 



6289 s 

 6290 s 

 6291 s 

 6292 s 

 6293 s 

 6294 s 

 6295 s 



25 Natural crystals of minerals 

 50 Natural crystals of minerals 



25 Fragments of minerals for blowpipe experiment . . 



50 Fragments of minerals for blowpipe experiment . . 

 104 Larger fragments of minerals for blowpipe experiment 



40 Larger fragments for use with Ross' " Pyrology " 



80 Larger fragments for use with Ross' " Pyrology " 

 Moh's scale of mineral hardness 

 Von Kobell's scale of fusibility of minerals . . 



1 1 



2 10 



026 

 050 

 18 

 060 

 12 6 

 050 

 030 



6296 



6297 



6296 s Explorer's Mineral Cabinet of minerals, precious stones, etc. 



Packed in a small, compact, portable, mahogany, well-made cabinet of 6 drawers, containing examples of 

 30 varieties of precious stones as found in a native state ; 20 specimens of the typical rocks, such as metals and 

 minerals would be found in or associated with ; and 200 specimens of ores of metals and useful minerals, such as 

 are valuable for commercial purposes, all with names and localities. All are numbered corresponding to names 

 on labels, etc., so that no difficulty can arise from confusion. The 200 minerals and ores are intended 

 for comparison with specimens that may be found by travellers. Of some species more than one specimen is given, 

 showing different characters, etc. 



Price 



6297 Mortar, amalgam, Buck's pattern, for grinding and amalgamating. By the rotation of the 

 muller a large sample of ore can be ground in contact with quicksilver. 

 Diameter 6i in., total weight 30 Ibs., weight of muller 16 Ibs. 



12 12 



1 10 



6298 6298 



6298 Mortars, for quartz, turned inside, with pestles with long wooden handles well fixed. 



Diameter .. .-5 5l 6 6 7 8 in. 



Price . . . . 12/6 14/- 16/- 19/- 22/- 29/- each 



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