We have endeavored to form a comparison of the number of French engineers and artillerists employed on these peninsular sieges.

But from the loose manner in which these details are usually given by historians, it is almost impossible to distinguish between the two.

Both are not unfrequently given under the same head, and when a distinction is apparently kept up, only the engineer _staff_ is mentioned under the head of engineers--the sappers, miners, artificers, the train, &c., all being put down as artillery.

In the following table we have endeavored to arrange them as is done in our own army.

The trains of both arms are left out, for frequently that of one arm performed the duties of the other.