Prof. Smith's remarks in the May Canadian Entomologist contain two separate counts. He implies that I might be led by personal views to an improper treatment of the collection in my charge. This implication I indignantly repudiate, and leave Prof. Smith to explain his breach of etiquette as best he may. While Prof. Smith's lack of humour has led him to misunderstand my views, he has no right to imply that with any personal views whatever I would not properly conserve the National Collection. This collection, rapidly becoming the finest in the country, will continue to be conserved with the greatest care. As to the synonymy of the Acronyctas, Prof. Smith makes two assumptions. First, that the specimens now in the British Museum labeled as Guendée's types are still as labeled and described by him; second, that if so, they are properly types. As to the first assumption, I am not in a position at present to dispute it, though I think that some admixture or confusion might have easily arisen in transference, and considering the length of time that has passed. As to the second assumption, I regard it as debatable in the cases where Guenée described larvæ.