But these events did not retard its progress.
Moreover, since the mould acts as a covering to retard the loss of heat, it should not be removed from the ingot until just before the latter is to be placed in its soaking furnace.
If the plate be introduced upon the other side, so as to retard the procession originally in arrear, there is no overlapping, whatever may be the amount of retardation.
The roughness of the surface of the cavity serves to retard it.
A severe cold of a few days' duration in March may very much retard the opening of the former ponds, while the temperature of Walden increases almost uninterruptedly.