Every summer, numerous detachments of excursionists - schoolchildren, students, tourists - go on trips to the mountains and plains of our Motherland. Many participants in such trips are not limited to superficial acquaintance with the rich and bright nature of their native country; they have a desire to study it more deeply. The first step in such a study is collecting. During excursions, many travelers, in accordance with their tastes and interests, make up various collections: zoological, botanical, mineralogical, archaeological, etc.