concept

Artificial sweetener saccharin crystals, LM

Vanillin crystals, LM

Malarial infection: a cross-section of blood cells (from the work of Alphonse Laveran). Photograph, ca. 1890.

The sandfly Phlebotomus argentipes: longitudinal section of abdomen. Photomicrograph, 1900/1950.

The sandfly Phlebotomus argentipes, the transmitter of kala-azar disease, feeding on a mammal. Photomicrograph, 1900/1950.

Blood corpuscles of a frog. Photomicrograph by Léon Foucault, 1844.

Spermatozoa of a frog. Photomicrograph by Léon Foucault, 1844.

Four kidney sections showing the kidney affected by yellow fever. Photograph, 1920/1950 (?).

Human milk. Photomicrograph by Léon Foucault, 1844.

Yellow fever: section of brain of a patient infected with yellow fever. Photograph, 1900/1920 (?).

Rouleaux of blood corpuscles. Photomicrograph by Léon Foucault, 1844.

Uric acid crystals. Photomicrograph by Léon Foucault, 1844.

Trypanosomiasis: microscopic view of brain (?) tissue. Photograph, ca. 1930.

Spermatozoa of a mouse. Photomicrograph by Léon Foucault, 1844.

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Uric acid crystals. Photomicrograph by Léon Foucault, 1844.

Trypanosomiasis: microscopic view of brain (?) tissue. Photograph, ca. 1930.

Spermatozoa of a frog. Photomicrograph by Léon Foucault, 1844.

Spermatozoa of a mouse. Photomicrograph by Léon Foucault, 1844.

Rouleaux of blood corpuscles. Photomicrograph by Léon Foucault, 1844.