REGNAULT’S HYGROMETRICAL RESEARCHES. 623 
8=0°622, that is to say, equal to the theoretical density, and 
comparing this weight with that which was obtained by direct 
weighing. 
The following table contains all the oe which have been 
obtained. The experiments at 0° (from 1 to 9) were made in 
ice, as has been said at page 621; the experiments from 10 to 
16 were made in a cellar, the temperature of which varied very 
little; all the others were made at the ambient temperature of 
the air in the different seasons of the year. 
Barometer | Final tem- | Tempera- 5 
Number |at the end| perature | ture of the| Weight of the vapour. 
ofthe |oftheex- | inthe saturated | ——— | Difference. 
aspirator. | periment. | aspirator. gr Suet Caleniniet 
mm ° ° gr. er. gr. 
745-00 6°75 0-00 0271 | 02737 | —0-003 
744-76 731 0-00 0:273 | 027380 0-000 
74880 714 0-00 0:269 | 02732 | —0-004 
748:76 8°87 0-00 0:268 | 0:2712 | —0-003 
748:77 7:76 0-00 0-273 | 02725 © 000 
740°83 797 0-00 0:272 | 02722 0-000 
740:°65 8:15 0-00 0:273 | 02720 | +0-:001 
744-19 7°44 0-00 0:272 | 0:2729 | —0-001 
745°74 7°42 0-00 0-271 | 0:2729 | —0:002 
752-79 15-02 14:81 0:734 | 0:7437 | —0:010 
753°72 14:89 14-67 0-731 | 07377 | —0:007 
754:°72 14:82 14:65 0-731 | 0°7367 | —0-006 
757-60 14:49 14:38 0-721 | 0:7248 | —0-004 
755°51 14-62 14°54 0:726 | 0-7319 | —0-006 
747-27 14:23 14-10 0-710 | 09-7123 | —0:002 
747-99 44:29 14:29 0-720 | 07212 | —0-001 
752-38 614 5:85 0-424 | 0:4236 0-000 
751-94 5°79 6:48 0-439 | 04431 || —0-004 
756-19 6°75 6-63 0-441 | 04447 | —0:004 
756°75 754 7-48 0-464 | 04711 | —0-007 
754-75 7:05 7-22 0-459 | 0:-4637 | —0:005 
75451 7:10 7:53 0472 | 04736 | —0-002 
748-08 7:03 6-64 0-441 | 04456 | —0:005 
763-06 14:12 13-20 0666 | 06718 | —0-006 
765-76 13°40 12°88 0-653 | 06598 | —0-007 
755°36 21:07 19-77 0-965 | 0:9723 | —0-007 
757-91 20°56 19:16 0-930 | 09576 | —0-007 
762-02 20-19 18-93 0-941 | 09423 | —0001 
760°69 20°04 18-93 0943 | 09451 0-000 
759-99 19-89 18-97 0:922 | 09293 | —0:007 
798715 2037 18-84 0918 | 09196 | —0:002 
758:17 19-91 19-00 0-926 | 9-93810 | —0-005 
75175 22-89 20:57 1-010 | 10133 | —0:002 
753°53 22-30 21:52 1072 | 1:0791 | —0-007 
753°63 21-91 21-56 1104 | 11079 | —0-004 
76066 21:43 20°33 1:020 | 10276 | —0:008 
760-25 21°31 20-42 1-008 | 10121 | —0-004 
75648 21°35 20°32 0:999 -| 1:0054 | —0-006 
75603 20°76 20:46 1-031 | 1:0898 | —0-009 
761-21 19-80 24:27 1-285 | 1:2977 | —0-012 
761-04 20°01 25°46 1-393 | 13952 | —0-002 
76430 20°71 20°52 1-041 | 10440 | —0:008 
bo BD BD ND ND et et et et tt et et et et 
42 
| RD BD ret BD BD et BD BD BD ND BD et ND BD et et at et pet tt et et tt et et 9 BDO BO BO BO BO BO BO 
| 
