Your Arizona planting guide, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Liefgreen Seed Company, 1943)

Your blue book of gardening : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Winsel-Gibbs Seed Company, 1926)

Your California planting guide, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.F. Smith & Co., Inc, 1945)

Your copy of Park's 1941 book of autumn - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1941)

Your garden favorites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1946)

Your garden favorites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1945)

Your garden favorites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1937)

Your garden favorites : garden for victory - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1944)

Zeitschrift für Botanik (1912)

Zeitschrift für Botanik (1915)

Zeitschrift für Entomologie - Verein für schlesische Insektenkunde zu Breslau. (In Commission bei I. Urban Kern, 1902)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Zoe:a biological journal (Zoe Publishing Co, 1890)

Zoe:a biological journal (Zoe Publishing Co, 1891)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1893)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1903)

The Zoologist : a monthly journal of natural history (1848)

The Zoologist : a monthly journal of natural history (1849)