Six albums of cards with detailed explanations from leading nature scholars in Europe in the 1920s. Pasted to the albums are hundreds of colorful [various sized] cards of plants and animals, primarily from Holland and its environs. The collection includes the following albums: * Texel by Jac. P. Thijsse, published by Uitgave Verkade’s Fabrieken N.V. Zaandam. 1927. First edition. 149 cards. Missing one card. 96 pages. 30 cm. * Kamerplanten by A.J.Van Laren. Published by Uitgave Verkade’s Fabreiken N.V. Zaandam. 1928. First edition. Full album with all 132 cards. 102 pages. 30 cm. * Paddenstoelen [mushrooms] by Jac. P. Thijsse. Published by Uitgave Verkade’s Fabreiken N.V. Zaandam. 1929. First edition. Full album with all 132 cards. 81 pages. 30 cm. * Cactussen [cacti] by A.J. Van Laren published by Uitgave Verkade’s Fabreiken N.V. Zaandam. 1931. First edition. Full album with all 120 cards. 102 pages. 30 cm. * Vetplanten by Van Laren A. J., published by Uitgave Verkade’s Fabreiken N.V. Zaandam. Amsterdam, 1932. First editon. Full album with all 126 cards. 101 pages. 30 cm. * De Boerdery (the farm) by H. E. Kuylman, published by Uitgave Verkade’s Fabreiken N.V. Zaandam. 1936. First edition. Full album with all 140 cards. 64 pages. 30 cm. All albums are complete, excluding one album that is missing one card. Aging stains over the entire set. All are in fine condition.