Every pioneer, and especially every young man, can make useful gifts to the school. In spring, summer, autumn and even winter, sightseeing in nature, it is not difficult to collect interesting collections in botany and zoology, make preparations, and along the way fulfill the task of pioneering steps in natural science. And the book prof. S.A. Pavlovich in the supplemented and revised edition will help you in this interesting and useful work. For an eight-year school.