Special list. established orchids, including cypripediums and native hardy orchids. No. 78 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1924)

Special list. established orchids, including cypripediums and native hardy orchids. No. 79 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1925)

Special list no. 62. orchids established. No. 62, August, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1915)

Special list no. 65. established orchids. No. 65, March 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1916)

Special offer : collections of orchids at reduced prices - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (United States Nurseries, 1890)

Special offer of imported orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (United States Nurseries, 1892)

Special offering. No. 88 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1931)

Special offering, No. 91 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1932)

Species Blancoanae :a critical revision of the Philippine species of plants described by Blanco and by Llanos - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Bureau of Printing, 1918)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum diferentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Linné, Carl von, 1707 -1778 (Junk, 1753)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (impensis G.C. Nauk, 1805)

The spirit of the woods : illustrated by coloured engravings - Spottiswoode, Andrew, (Printed for Longman, Rees, Orme, Brown, Green & Longman ; and M. Robinson, Leeds, 1837)

Spring 1946 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Germain, 1946)

Spring 1947 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Germain, 1947)

Spring 1950, hybrid seedlings - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Margaret Ilgenfritz Orchids, 1950)

Spring 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Germain's, 1955)

Spring and summer planting list, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paul J. Howard's California Flowerland, 1941)

Spring offering 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carolina Orchid Growers, Inc, 1951)

Spring price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Finck Floral Co, 1951)

St. Croix's flora - Eggers, H. F. A. Baron von, (Heinrich Franz Alexander), 1844 -1903 (s.n, 1876)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Co.; [etc., etc.], 1916)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

Standardized plant names; a catalogue of approved scientific and common names of plants in American commerce - Olmsted, Frederick Law, 1870 -1957 (1923)

Stein's Orchideenbuch. Beschreibung, Abbildung und Kulturanweisung der empfehlenswertesten Arten. Mit 184 in den Text gedruckten Abbildungen - Stein, Berthold. (P. Parey, 1892)