. The analysis of food and drugs . Insecta. Macrohiotus ursellus (66). — Commonly known as the water - bear. It has four legs, ending in stiff cilia, which help it to hold on to water - plants. ^^ The head has no antennae, and has eyes ; the mouth is suctional. It is microscopic in size, and is found in pond-water. Porifera. Spongilla ftuviatilis.—The only fresh-water sponge. Itgrows in greenish masses in canals and fresh-water sponge itself is an inch or more in diameter; thespicules are most likely to be noticed. Protozoa. Actinophrys sol (67).—This is a small round animalcule,with
. The analysis of food and drugs . Insecta. Macrohiotus ursellus (66). — Commonly known as the water - bear. It has four legs, ending in stiff cilia, which help it to hold on to water - plants. ^^ The head has no antennae, and has eyes ; the mouth is suctional. It is microscopic in size, and is found in pond-water. Porifera. Spongilla ftuviatilis.—The only fresh-water sponge. Itgrows in greenish masses in canals and fresh-water sponge itself is an inch or more in diameter; thespicules are most likely to be noticed. Protozoa. Actinophrys sol (67).—This is a small round animalcule,with one nucleus. It is surrounded by stiff, radiatingpseudopodia. Found in
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Keywords: ., bookcentury1800, bookdecade1890, bookidcu3192400093, bookyear1897
