430 Prof. J. Dewar and Mr. H. 0. Jones. [Mar. 3, 



Table I. — Yapour Densities determined by Meyer's Method. 







Yapour 

 density 1 

 found 



(H = 1).' 



Percent- 





Temperature 

 of the bulb. 



°C. 



G-as 

 filling the 

 bulb. 



age of 

 Ni(CO), 



dis- 

 sociated. 



Remarks. 



63 



Nitrogen . 



83 -3 



0*7 



Very slight deposit of nickel. 







78-2 



2 -7 



Slight deposit of nickel. 



64 



Hydrogen 



79 *2 







66 



Carbon 



83 -9 



0-15 



Nickel covered tube. 





monoxide 



85 -2 







81 



Nitrogen . 



71 -0 



6 "2 



Slight deposit of nickel. 



(Benzene) 





72 -1 







100 



Hydrogen 



67 -3 



8 -S 



Nickel deposited over several 





67 -0 





inches in the tube. 





>> 



56 -9 

 56 -7 



16 -7 



Wide tube covered with nickel. 





>> 



79*0 



2 -4 



Narrow tube. Nickel deposit 







79 *8 





extended about 32 cm. 



>> 



Nitrogen . 



70 -8 



6-7 









70 "9 





Wide tube. 





>» 



75 -6 



4 -1 



Narrow tube. 



33 



Ethylene 



70 -6 



6 -8 



Wide tube. Nickel deposited 





70 -7 





over 2 cm. from bottom of tube. 







73 '7 



4-3 



Wide tube. Moist nickel car- 







76 '7 





bonyl. Nickel deposited irreg- 

 ularly over about 3 cm. 







77 '8 



2-7 



Narrow tube. Nickel deposit 







79 '5 





extended 22 cm. 



3> 



Carbon 



85 '0 



'39 



W^de tube. No visible deposit 





monoxide 



83 "1 





of nickel. 







82 -6 



-6 



W r ide tube, cohered with nickel 







84 "5 





carbonyl, dried over phos- 

 phorus pentoxide. 







76 *4 



3 *87 



Narrow tube. Slight deposit of 







76 '0 





nickel. 



110 



Nitrogen . 



48 "4 



25 *4 



Distinct deposit of nickel. 



(Toluene) 





48 *1 





35 



Carbon 



75 "2 



4 -4 



Deposit of nickel scarcely visible. 





monoxide 



74 *8 





129 



Nitrogen . 



25 -1 



76 -5 



Extensive deposition of nickel 



(Amyl alcohol) 





26 "4 





over tube. 



Carbon 



31 -7 



54*5 



" " 





monoxide 



32 7 





135 



Carbon 



26 '9 



72 -0 



33 J J 



(Acetic 



monoxide 









anhydride) 











155 



Nitrogen . 



22-5 



94 -3 



3) 33 



(Turpentine) 





22 5 







Carbon 



23 -2 





33 3) 





monoxide 



23 -16 



88-8 





182 



Nitrogen . 



23 '3 



89 -0 



" 



(Aniline) 





23 -0 









Carbon 



24-4 



82 -8 



33 3 3 





monoxide 



23 3 



88 -2 





216 



Nitrogen . 

 Carbon 



22 -4 



93 -0 



3) 33 



(Naphthalene) 



22 -44 

 (20 -9) 









monoxide 



21 3 



99 -7 





