Note 143 — Chapter XLI · EXPLOSIONS AND EXPLOSIVES

In giving the output of the various explosives, I have been most careful so to classify them as to avoid disclosures which might by any possibility be objected to by those members of the Explosives Trade to whose courtesy I owe the information. For instance, I have not even differentiated between gunpowder and high explosives, owing to the fact that the gunpowder trade is now concentrated in the hands of three or four firms.