14 



On the Specific Gravity of Vapours and Gases. 



density of ether vapour which was heated up to 143° C. 

 vessels were filled anew in each experiment. 



The 





Experiment 



Experiment 



Experiment 





VII. 



VIII. 



IX. 



fs 



+0-3700 



+03900 



+0-3800 



r v 



4-0-317 



+ 1-150 



+0'525 



rg 



-0-471 



-0 558 



+0-458 



mg 



+06 



+8-7 



o-o 



My 



+ 7-1 



o-o 



+3-5 



A iv 



-0-00068 



-0-00068 



-0-00068 



A i 



-0-0002 



-000060 



+0-0003 



X 



+0-000S5 



+ 0-00085 



+0-00085 



1\ 



+0-1500 



+0-1500 



+01500 



r v 



-0-250 



-0-150 



-0-667 



r i 



-0-208 



+0-691 



+0-541 



on l 



+9-4 



+0-4 



+03 



m v 



+6-0 



00 



00 



Am 



-0 0003 



-00003 



-0 0003 



** 



+0-00023 



+000023 



+000023 



8 



+00005 



+0-0005 



+00005 



These weighings give the following result for the specific 

 weight of ether vapour : — 



VII. .... 2-569 



VIII 2-563 



IX. ... . 2-565 



The following two estimations of aqueous vapour, which was 

 also heated to 143° C, were also conducted in the same vessels. 

 The amount of vapour weighed was only about 80 milligrammes. 





Experiment X. 



Experiment XI. 



Pg 



+0-0800 



+ 00800 



+ 0-608 



-0-550 



r S 



+0-573 



+0-591 



m g 



+ 2-2 



+3-4 



Oily 



00 



00 



Aiv 



-0-00068 



-0-00068 



^4 



-000451 



-0-00271 



X 



+000085 



+0-00085 



Pi 



+0-1400 



+0-1300 



r y 



-0-116 



+0-291 



r % 



+0050 



+ 091 



m 1 



+ 6-4 



4-1-1 



m y 



o-o 



00 



Am 



-0 00030 



-0-00030 



^3 



+000111 



+0-00108 



d 



+0-0005 



+0-0005 



