Note 5 — Chapter VIII
Reading edition
A "T" sap is one of a series constructed in the form of a letter "T," so that the top of the "T" may be driven out left and right, and, linking up with the others, form a new trench in advance.
Reading edition
A "T" sap is one of a series constructed in the form of a letter "T," so that the top of the "T" may be driven out left and right, and, linking up with the others, form a new trench in advance.