human
On this head, that of the application of chemistry to pyrotechny, we claim so much originality, as, so far as we know, to have been the first, who applied the principles of chemistry.... As this subject, however interesting to the theoretical pyrotechnist, cannot be understood without a knowledge of chemistry, it is obvious that that science is a powerful aid to pyrotechny.... Viewing pyrotechny either as a science or an art, there is undoubtedly required in its prosecution much skill and practice. The mere artificer or fireworker by constant habit may understand, it is true, how to mix minerals, prepare composition, charge cases, etc., ... but without a knowledge of chemistry he cannot understand the theory.... Indeed, chemistry is indispensable to pyrotechny.