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The Thorn Spider (Gasteracantha cancriformis) is a neotropical spider of the Micrathena schreibersi species of orb weavers (Araneidae). The spider has a wide distribution throughout Central and South America. Females are large and brightly colored, and have a triangular abdomen with black margins and 10 prominent spines. Males are smaller and less conspicuous than females and are less frequently encountered.
Macroscopic Solutions- Pictures
Scene from Sir Walter Scott's "Anne of Geierstein": Hermione takes refuge in the chemical laboratory of Sir Herman, an Austrian alchemist. Oil painting.
Reference: 45105i- Pictures
- Online
An Australian lily (Doryanthes excelsa) picked in New South Wales. Photograph, 1882.
Date: 1882Reference: 574859i- Digital Images
- Online
A naked man wearing laced boots being kissed on the thigh by another man wearing a fur cloak in an outdoor setting; an advertisement for the National AIDS Hotline by DIFFA Design Industries Foundation and the Red Hot Organisation. Colour lithograph by Steven Klein.
- Digital Images
- Online
Two gay men kissing in an outdoor setting, one wears a kilt; an advertisement for the National AIDS Hotline by DIFFA Design Industries Foundation and the Red Hot Organisation. Colour lithograph by Steven Klein.
- Pictures
"Tammy and the doctor": advertisement for film. Colour lithograph, 1963.
Date: [1963]Reference: 679853i- Digital Images
- Online
Liver of a DEN (Diethylnitrosamine)-treated rat. DEN is a toxic chemical which quickly induces liver cirrhosis followed by HCC (Hepatocellular carcinoma, a primary liver cancer). Cirrhosis is an end result of fibrosis, the scarring of liver tissue. Fibrosis is caused by the overproduction of collagen, a component of the connective tissue forming the liver. To grade the amount of cirrhosis present in a liver sample, collagen is made visible using the dye sirius red. Under polarized light, collagen is observed as the golden to red color as shown in this image.
Tabea Hohensee- Pictures
- Online
Four male couples wearing t-shirts bearing the slogans 'testing', ' treatment', 'trials' and 'triumphs'; advertisement for early advocacy and care for HIV by the Department of Public Health of San Francisco. Colour lithograph by John Tomlinson and Ira Nowinski.
Date: [between 1900 and 1999]Reference: 667707i- Pictures
A poppy capsule oozing drops of crude opium and tools for its extraction. Lithograph, ca. 1850.
Sherwill, W. S. (Walter Stanhope)Date: [1851]Reference: 25040i- Pictures
- Online
A diseased lung. Watercolour.
Reference: 32191i- Pictures
Angelica and Medoro: Medoro scratches Angelica's name on a tree. Engraving by F. Bartolozzi, 17--, after B. Luti.
Luti, Benedetto, 1666-1724.Date: 1700-1799Reference: 3063629i- Digital Images
- Online
Wine crystals
Fernan Federici and Marcia Sartor- Digital Images
- Online
Wine crystals
Fernan Federici and Marcia Sartor- Digital Images
- Online
Urea crystals
Fernan Federici and Marcia Sartor- Digital Images
- Online
Wine crystals
Fernan Federici and Marcia Sartor- Digital Images
- Online
Pink lichen
Odra Noel- Digital Images
- Online
Green lichen
Odra Noel- Digital Images
- Online
Yellow lichen in yew tree
Odra Noel- Digital Images
- Online
Yellow lichen on rock
Odra Noel- Pictures
- Online
Alexander the Great being mocked by the apprentices in the studio of Apelles. Etching by Salvator Rosa.
Rosa, Salvatore, 1615-1673.Date: 1600-1699Reference: 38761i- Pictures
Panama-Pacific International Exposition, San Francisco: the pavilions and setting of the exposition. Colour process prints, 1915.
Date: [1915]Reference: 37408i- Digital Images
- Online
Soy sauce crystals
Fernan Federici and Marcia Sartor- Pictures
- Online
Malarial infection: a cross-section of blood cells (from the work of Alphonse Laveran). Photograph, ca. 1890.
Date: 1890Reference: 568749i- Digital Images
- Online
Crystals of the amino acid cysteine
Fernan Federici and Marcia Sartor- Digital Images
- Online
Farm animal Golden Guernsey goat kids
Caroline Gunn