136 



NEW YORK STATE MUSEUM 



Cobalt 



Oo 



58.7 



Palladium 



Pd 



106.2 



Colunibiurn, 







Phosphorus 



P 



31 



see 



Niobium 





Platinum 



PI 



194.3 



Copper 



Cu 



63.2 



Potassium 



K 



39 



Didymium 

 Erbium 



Di 

 Er 



142 

 166 



Praseodymium 



Pr 



140.5 









Rhodium 



Rh 



104.1 



Fluorin 



F 



19.1 















Rubidium 



Rb 



85.2 



Gadolinium 



Gd 



156 















Ruthenium 



Ru 



103.5 



Gallium 



Ga 



69.9 















Samarium 



Sm 



150 



Germanium 



Ge 



72.3 















Scandium 



Sc 



44 



Glucinum, 













see 



Beryllium 





Selenium 



Se 



78.9 



Gold 



Au 



196.7 



Silicon 



Si 



2S 



Helium 



He 



4.3 



Silver 



Ag 



107.7 



Hydrogen 



H 



1 



Sodium 



Na 



23 



Indium 



In 



113.4 



Strontium 



*■ Sr 



87.3 



Iodin 



I 



126.5 



Sulfur 



S 



32 



Iridium 



Ir 



192.5 



Tantalum 



Ta 



182 



Iron 



Fe 



55.9 



Terbium 



Tb 



160 



Lanthanum 



La 



138 



Tellurium 



Te 



125 



Lead 



Pb 



206.4 



Thallium 



Tl 



203.7 



Lithium 



Li 



7 



Thorium 



Th 



232 



Magnesium 



Mg 



24 



Thulium 



Tu 



170 



Manganese 



Mn 



54.8 



Tin 



Sn 



118 



Mercury 



Hg 



199.8 



Titanium 



Ti 



48 



Molybdenum 



Mo 



96 



Tungsten 



W 



183.6 



Neodymium 



Nd 



143.6 



Uranium 



u 



240 



Nickel 



Ni 



58.6 



Vanadium 



V 



51.1 



Niobium 



Nb 



93.7 



Ytterbium 



Yb 



172.6 



Nitrogen 



N 



14 



Yttrium 



Yt 



89 



Osmium 



Os 



191 



Zinc 



Zn 



65.1 



Oxygen 







16 



Zirconium 



Zr 



90.4 



THE MINERAL COLLECTION OF THE NEW YORK STATE 



MUSEUM 



Probably no mineral collection, however large and compre- 

 hensive in a comparative sense, can be regarded as exhaustive 

 or complete. New minerals are constantly being discovered and 

 new occurrences of known minerals constantly noted, so that as 

 in the collections of every other department of science, a mineral 

 collection is bound to increase to keep pace with the progress 

 of discovery. 



The mineralogic student should not lose sight of the fact that 

 though comparatively few of the many hundreds of mineral 

 species known to science are found in sufficient abundance to be 

 of importance in the arts, the discovery of a considerable deposit 

 of a species which is at present considered rare may at any time 



