----------------+------------+-----------+-----------+-------------- Observer. | Gardner | Sabin | Pickard | { Rogers } | | | | { North } ----------------+------------+-----------+-----------+-------------- Wt. of Oil for | 0.2218 | 0.2877 | 0.4581 | 0.2249 Test, grams | | | | -----------+----+------------+-----------+-----------+-------------- | 1 | 11.5 | 12.78 | 13.16 | 11.74 | 2 | 11.8 | 12.78 | 12.64 | 12.27 | 3 | 12.5 | 11.74 | 11.84 | 10.38 | 4 | 13.9 | 12.23 | 11.50 | 9.43 | 5 | 14.0 | 10.60 | 11.01 | 9.66 | 6 | 14.0 | -- | -- | 9.75 | 7 | -- | 9.35 | 9.15 | -- | 8 | 14.1 | 10.08 | -- | 10.29 | 9 | -- | 9.76 | 7.29 | -- Percentage | 10 | 14.1 | 9.59 | -- | 9.08 Increase | 11 | -- | -- | 6.61 | -- in Weight, | 12 | 13.8 | 9.59 | -- | 8.18 in Days. | 13 | -- | -- | 7.43 | -- | 14 | 13.6 | -- | -- | 8.95 | 15 | -- | 9.00 | 6.96 | -- | 16 | 13.6 | -- | -- | -- | 17 | -- | 8.09 | -- | -- | 18 | 13.6 | -- | 6.66 | -- | 19 | -- | 8.00 | -- | -- -----------+----+------------+-----------+-----------+-------------- Remarks. |Clear, firm | | |Tacky at end |film ob- | | |of 1st and 2d |served at | | |days. Dry, end |end of 2d | | |10th day. |day. | | | ----------------+------------+-----------+-----------+-------------- TABLE VII.--(_a_) ROSIN OIL 100 PER CENT.