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We have tables properly arranged in regard to light, microscopes, and dissecting instruments, and we work through the structure of a certain number of animals and plants. As, for example, among the plants, we take a yeast plant, a Protococcus, a common mould, a Chara, a fern, and some flowering plant; among animals we examine such things as an Amoeba, a Vorticella, and a fresh-water polype.
Neither plant nor bird, excepting a few condors wheeling around the higher pinnacles, distracted my attention from the inanimate mass. I felt glad that I was alone: it was like watching a thunderstorm, or hearing in full orchestra a chorus of the Messiah. On several patches of the snow I found the Protococcus nivalis, or red snow, so well known from the accounts of Arctic navigators.
Plagiophrys. 96. Playtiptera polyarthra. 97. Polycoccus. 98. Pollen of pine. 99. Polyhedra tetraetzica. 100. " triangularis. 101. Polyphema. 102. Protococcus. 103. Radiophrys alba. 104. Raphidium duplex. 105. Rotifer ascus. 106. " vulgaris. 107. Silica. 108. Saprolegnia. 109. Scenedesmus acutus. 110. " obliquus. 111. " obtusum. 112. " quadricauda. 113. Sheath of tubelaria. 114.
Neither plant nor bird, excepting a few condors wheeling around the higher pinnacles, distracted my attention from the inanimate mass. I felt glad that I was alone: it was like watching a thunderstorm, or hearing in full orchestra a chorus of the Messiah. On several patches of the snow I found the Protococcus nivalis, or red snow, so well known from the accounts of Arctic navigators.
Mine host with whom I lodged had a microscopical mount of the Protococcus nivalis in excellent state of preservation. The sporangia were very red and beautiful, but they showed no double cell wall. In this locality ague is unknown; indeed, the place is one of unusual salubrity. It is interesting to note here to show how some of the algae are diffused.
We have tables properly arranged in regard to light, microscopes, and dissecting instruments, and we work through the structure of a certain number of animals and plants. As, for example, among the plants, we take a yeast plant, a Protococcus, a common mould, a Chara, a fern, and some flowering plant; among animals we examine such things as an Amoeba, a Vorticella, and a fresh-water polype.
One finds, not unfrequently, groups of three and four closely resembling Protococcus. Starch is invariably present; the wall is true plant-cellulose, yielding a magnificent blue with iodine and sulphuric acid, and the yellow coloring matter is identical with that of diatoms, and yields the same greenish residue after treatment with alcohol.
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