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The point of the finest cambric needle, with a particle of dust (above) and bacteria (below) for scale.

bacteria and cambric needle

The point of the finest cambric needle, with a particle of dust (above) and bacteria (below) for scale.

"Egg-shaped mass of zoogloea of Beggiatoa roseo-persicina (Bacterium rubescens of Lankster); the gelatinous swollen walls of the large crowded cocci are fused into a common gelatinous envelope." — The Encyclopedia Britannica, 1910

Zoogloea

"Egg-shaped mass of zoogloea of Beggiatoa roseo-persicina (Bacterium rubescens of Lankster); the gelatinous…

"Reticulate zoogloea of the same." — The Encyclopedia Britannica, 1910

Zoogloea

"Reticulate zoogloea of the same." — The Encyclopedia Britannica, 1910

"Zoogloea of Bacterium merismopedioides, Zopf, containing cocci arranged in tablets." — The Encyclopedia Britannica, 1910

Zoogloea

"Zoogloea of Bacterium merismopedioides, Zopf, containing cocci arranged in tablets." — The Encyclopedia…