The explosive wave from the dry guncotton primer is in fact better responded to by the wet compressed material than the dry, and its detonation is somewhat sharper than that of the dry.
A charge of compressed wet guncotton may be exploded, even under water, by the detonation of a small primer of the dry and waterproofed material, which in turn can be started by a small fulminate detonator.
In 1520 he had brought out a primer of religion dealing briefly with the Decalogue, the Creed and the Lord's Prayer; and Justus Jonas, Johannes Agricola and other leaders had done something of the same kind.
This primer was his only book, and he loved it.
Next I turned to the first page of the primer and made her touch the word CAT, spelling it on my fingers at the same time.