Velocity of Elect 



ric Waves in Air. 



1 



Distance in 



cms. from the 



reflector. 



1 



First 



maximum 



reading. 



Increased 



maximum 



reading. 



The increase due to • 

 the electric waves. 



11500 



8100 



8-100 



o-ooo 



Mean 0-000. 





8-550 



8-550 



o-ooo 







8-450 



8-450 



0000 







6-450 



6-450 



o-ooo 







8-250 



8-250 



0-000 





26290 



8 600 



8-825 



0-225 



Mean 0-2600. 





8-000 



8-250 



0-250 







7-600 



7-850 



0-250 







7-8C0 



8-100 



0-300 







8 550 



8825 



0-275 





2-7960 



8-150 



8-325 



0-175 



Mean 0-1800. 





7-400 



7-565 



0165 







7450 



7 650 



0200 







6475 



6-650 



0175 







8000 



8183 



0185 





31960 



7-800 



7-900 



0-100 



Mean 0-1000. 





7-750 



7-850 



0100 







7-250 



7400 



0-125 







8-425 



8-500 



0075 





41075 



8-400 



8-500 



0100 





8-750 



8-750 



000 



Mean 0-0^)00. 





8-350 



8-350 



0-000 







7-100 



7-100 



0-000 







8-300 



8-300 



0000 







8-400 



8-400 



0000 





3-4000 



8-800 



8-850 



0-050 



Mean 0-0160. 





8-425 



8-500 



0-075 







8-40O 



8-466 



0-066 







8-500 



8-575 



0075 







8-100 



8165 



0065 





4-5056 



8150 



8-175 



025 



Mean 0-0375. 





7-750 



7-800 



0050 







8-350 



8400 



0050 







8-575 



8600 



025 







8-300 



8-350 (?) 



0-050 (?) 





7-835 



7-860 



0-025 





5-5863 



8-400 



8-625 



0-225 



Mean 0-2620. 





8-450 



8-700 



0-250 







8-150 



8-450 



0-300 







8-500 



8-750 



0-250 







8450 



8-735 



0-285 





66670 



8-250 



8-300 



0050 



Mean 0-0350. 





8-400 



8-425 



0-025 







8-500 



8-525 



0025 







8-100 



8-150 



0-050 







8-550 



8-575 



0025 





Phil. Mag. S. 5. Vol. 48. No. 290. July 1899. K 



