144 
PROFESSOR W. RAMSAY AND DR. S. YOUNG 
Series II. 
33. A quantity of the alcohol was removed and a fresh set of determinations made 
at 220°. A curve was then constructed from the results of Series I., showing relation 
between volume and pressure ; the volumes on this curve corresponding to the pressure 
on the second series were then read, and the ratios between the volumes in the two 
series at the same pressures were determined. By this method the weight of the 
alcohol used in Series II. was found to be 0’004751 grm. It will be seen that with 
this smaller quantity of substance the vapour-density at the higher temperatures and 
largest volumes becomes constant at 23, and this affords sufficient confirmation of the 
correctness of the weight given. 
T. 
Volume. 
Sp. vol. 
P. 
P. V. 
Vapour density. 
120 
0-88243 
185-7 
2725 
2405 
24-13 
5? 
0'84553 
178-0 
2826 
2390 
24-28 
J’ 
0-80841 
170-2 
2942 
2379 
24-40 
?) 
0-77177 
162-4 
3061 
2363 
24-55 
99 
0-75353 
158-6 
3117 
2350 
24-69 
99 
0-74619 
157-1 
3142 
2346 
24-73 
99 
0-73894 
155-5 
3167 
2342 
24-78 
99 
0-73528 
154-8 
3176 
2337 
24-83 
99 
0-73156 
154-0 
3185 
2326 
24-94 
130 
0-84575 
178-0 
2930 
2478 
24-01 
0-69884 
147-1 
3479 
2433 
24-45 
99 
0-62471 
131-5 
3838 
2399 
24-81 
99 
0-58762 
123-7 
4037 
2374 
25-08 
99 
0-57273 
120-6 
4117 
2360 
25-22 
0-56529 
119-0 
4168 
2357 
25-24 
99 
0-55785 
117-4 
4220 
2355 
25-27 
99 
0-55414 
116-6 
4244 
2352 
25-29 
99 
0-55045 
115-9 
4261 
2346 
25-36 
99 
0-54668 
115-1 
4279 
2340 
25-43 
140 
0-84598 
178-1 
3012 
2549 
23-92 
99 
0-73567 
154-8 
3445 
2536 
24-05 
99 
0-62489 
131-5 
3978 
2487 
24-52 
99 
0-51335 
108-0 
4749 
2439 
25-01 
0-43862 
92-32 
5428 
2381 
25-60 
0-42740 
89-96 
5533 
2365 
25-78 
99 
0-41990 
88-38 
5606 
2355 
25-90 
99 
0-41615 
87-59 
5653 
2353 
25-92 
150 
0-84618 
178-0 
3127 
2646 
23-60 
99 
0-73583 
155-0 
3567 
2625 
23-80 
0-62503 
131-5 
4128 
2581 
24-20 
0-51348 
108-0 
4933 
2534 
24-65 
0-40136 
84-48 
6165 
2475 
25-23 
0"36366 
76-55 
6632 
2412 
25-89 
0-34509 
72-64 
6916 
2386 
26-17 
0-32649 
68-72 
7231 
2362 
26-45 
99 
0-32279 
67-94 
7276 
2349 
26-59 
0-31907 
67-16 
7334 
2341 
26 68 
0-31540 
66-39 
7353 
2320 
26-92 
160 
0-84639 
178-1 
3214 
2721 
23-50 
99 
0-73602 
155-0 
3661 
2696 
23-72 
99 
0-62519 
131-6 
4272 
2672 
23-93 
