Two young cousins, equipped by an uncle with a book, nets, and specimen tools, attempt to make a grand butterfly collection while their aunt prefers watching insects alive. The narrative follows their clumsy, patient chases through a daisy meadow, misadventures with torn nets, escapes and occasional captures, and the curious presence of a donkey. Interspersed with practical instructions and descriptive illustrations, the account balances hands-on details about catching and mounting butterflies with gentle reflections on childhood curiosity, the ethics of collecting, and learning to observe nature.