In 1874, Fanny Angelina married physician and bacteriologist Walther Hesse, an investigator of air quality and, specifically, air-borne microbes. In the Winter of 1880-81, Hesse became a research student with Koch in Berlin and experienced firsthand the difficulty of growing microbes on gelatine and the other growth media used at the time.
Виктория Кондратьева (Редактор отдела «Мир»)
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The stamp’s background fill color is [COLOR] — muted, desaturated, dusty, vintage-toned, completely flat. No gradients, no shading. The illustration engraving lines must be a significantly darker shade of [COLOR], dark enough to stand out clearly and crisply against the background at high contrast.
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