452 



Messrs. D. Mcintosh and B. D. Steele. 



[Apr. 26, 



T. X (MV)f 



163-1 263-7 



168-5 255-9 



171-8 250-8 



181-9 330-1 

 184-8 325-6 

 186-1 320-1 



225^3 367-0 

 227-1 362-8 

 229-3 358-5 



189-1 349-5 

 191-3 345-3 

 194-6 338-0 



Hydrochloric Acid. 



T. X (MV)S. 

 175-8 244-8 

 180-1 239-0 

 183-2 233-6 



Hydrobromic Acid. 



188-9 314-6 

 193-4 307-3 

 195-3 299-6 



Hydriodic Acid. 



230-9 355-3 

 232-9 351-0 



Sulphuretted Hydrogen. 



197-4 334-1 

 199-7 328-3 

 201-5 326-6 



T. A(MV)i 



187-2 229-3 



189-9 223-6 



192-6 221-0 



198-2 294-8 

 200-5 292-2 

 203-9 283-8 



235- 348-0 



236- 5 344-6 



203-9 324-7 

 206-9 316-7 

 210-8 308-6 



Phosphoretted Hydrogen. 



167-1 287-2 175-4 273-4 



171-8 279-6 179-9 265-4 



Variation of molecular surface energy with temperature and the 

 association factor — 



HC1. HBr. HI. H 2 S. H 3 P. 



d\(MV)%/dT... 1-47 2-03 1-99 1*91 1*70 



x 1-5 1-0 1-0 1-1 1-4 



4. — The Viscosities, and Viscosity Temper atvre Coefficient. 



The viscosities of the pure liquids were determined by comparison 

 with that of distilled water at 22°. The object of the measurements 

 was to procure data for the comparison of the temperature coefficients 

 of viscosity and of electrical conductivity. 



Viscosity Temperature Coefficient, drj/dT. 



Hydrochloric Acid. 



T 160-8 166-7 171-7 177-0 183-2 188-2 



rj 0-590 0-569 0-530 0-514 0-493 0*477 



drj/dT = 0-88. 



