CHEMICAL GERMAN 231 



''Platin, n., platinum. 



Platinmetall, n., -e, a metal of the platinum group (used commonly in the 



plural). 

 ". .Platinmohr, m . t platinum black. 



Plattenturm, m., -tiirme, plate column (sulphuric acid manufacture). 



plotzlich, suddenly. 



pneumatisch, pneumatic. 



pneumatische Wanne, pneumatic trough. 



polarisieren, t., to polarize. 



Polemik, f. t a controversy of heated character. 



Politur, f. t polish. 



^Polymorphic, f. t polymorphism. 

 APorzellan, n., porcelain. 



Pottasche, f. t impure potassium carbonate. 



pracis, prazis, precise. 



Praexistenz, /., preexistence. 

 }\Praparat, n., -e, chemical product, chemical, 

 x^raktikant, m., ~en, one engaged in laboratory work, a laboratory student. 



Praktiker, m. f -> one having practical experience in an art or science. 



Praseodym, n ., ) 

 Praseodymium, ., } praseodymium. 



Praxis, /., practice. 



Preis, m., -e, price. 



prima (Qualitat), of first quality. 



Prisma, n ., Prismen, prism. 



Privatdozent, m., -en, lecturer without salary at a German university. 



pro, per. 



Probe, f. t -n, a test; an assay; sample for analysis. 



Proberohr, -e, 



Proberohrchen, test tube ' 



Probierkunst, /., the art of assaying. 

 Professur, f. t -en, professorship. 

 Propionsaure, /., propionic acid. 

 Protokoll, n., -e, minutes of a meeting. 

 v Prozent, n., -C| per cent. 

 Priifung, /., examination, test. 

 Pseudomorphose, /., pseudmorph. 

 puddeln, t., to puddle iron. 

 Puddelofen, m., -ofen, puddling furnace. 

 Pulver, n., powder. 

 pulverformig, 

 pulverig, 



[ in powder form, pulverulent. 



