236 



The weight of the water displaced by the ball differs from the loss of 

 weight by 1.4 Of. The accuracy may be increased by using aluminum in- 

 stead of steel. 



Specific Gravity of ax Irregular Solid. 

 No Load. Aluminum in Air. Aluminum in Water. 



54.07 cm. 88.36 cm. 75.70 em. 



54.07 88.38 75.69 



54.08 88.38 75.69 

 Elongation in air 34.31 cm. 

 Elongation in water 21.62 cm. 

 Decrease in water 12.69 cm. 



Specific gravity of aluminum 2.70. 



Specific Gravity of Solids Lighter than "Water. 



Paraffin and Aluminum 



No Load. Paraffin in Air. in Water. 



54.01 67.23 73.39 



54.01 67.25 73.37 



54.00 67.24 73.38 



Elongation due to paraffin in air 13.23 cm. 



Elongation due to both in water 19.37 cm 



Elongation due to aluminum in water 21.61 cm. 



Elongation due to paraffin in water — 2.25 cm. 



Loss by paraffin in water 15.4iS cm. 



Specific gravity of paraffin =^ .854. 



Specific Gravity of Liquids. 

 No Load in Ether. Aluminum in Etlier. 



54.26 cm. 79.01 cm. 



54.26 79.00 



54.27 79.00 

 Elongation due to aluminum in air 34.31 cm. 

 Elongation due to aluminum in ether 24.74 cm. 

 Decrease in ether 9.57 cm. 



Decrease in water 12.69 cm. 



Specific gravity of ether .754. 

 Besides these, two other experiments can be performed in a very satis- 

 factory manner, namely, "Tlie Surface Tension of Water" and "The 

 Distribution of Magnetism in a Bar Magnet." 



