In these days the study of botany enters so largely into polite education, that it has become an essential part of a gardening education, and it is found by experience that those nurserymen or seedsmen who watch the current of affairs, and make their catalogues and advertisements botanically interesting as well as horticulturally instructive, add immensely to their business success. As an illustration of the great change which the best catalogues exhibit we give the following extract from the catalogue of Haage & Schmidt, of Erfurt, Germany: