The American Monthly Microscopical Journal, Volume 31882 |
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... Chlorophyll , Animal and Vegetable 202 Exchange - bureau 235 Chlorophyll , Investigations of .. 19 Exchanges 118 Clava Leptostyla , Development of the Eye - shade 179 Planula of . J. H. Pillsbury ... 181 Fat - cells and Connective ...
... Chlorophyll , Animal and Vegetable 202 Exchange - bureau 235 Chlorophyll , Investigations of .. 19 Exchanges 118 Clava Leptostyla , Development of the Eye - shade 179 Planula of . J. H. Pillsbury ... 181 Fat - cells and Connective ...
Page 9
... chlorophyll- grains inside the diatoms , I could never determine , though I have watched for hours . Unfortunately , a change in the character of my water- supply has deprived me of the means of continuing these investigations ; I ...
... chlorophyll- grains inside the diatoms , I could never determine , though I have watched for hours . Unfortunately , a change in the character of my water- supply has deprived me of the means of continuing these investigations ; I ...
Page 31
... chlorophyll , the coloring matter of the vegetable kingdom , which have a scarcely perceptible enveloping mem- brane , with the two or more hair - like , lashing filaments . They do not as- similate food , but pass an ephemeral ...
... chlorophyll , the coloring matter of the vegetable kingdom , which have a scarcely perceptible enveloping mem- brane , with the two or more hair - like , lashing filaments . They do not as- similate food , but pass an ephemeral ...
Page 32
... chlorophyll , which slowly elongate , divide and produce new filaments . We have no time this evening to indicate the important role which the most minute living creatures play in the world ; but , owing to the inter- est now taken in ...
... chlorophyll , which slowly elongate , divide and produce new filaments . We have no time this evening to indicate the important role which the most minute living creatures play in the world ; but , owing to the inter- est now taken in ...
Page 93
... chlorophyll band . As the sheath of animal pro- toplasm slowly advances , the chloro- phyll band falls and , losing its dis- tinct , crenated outline , becomes par- tially disintegrated and is borne to- ward the shell by a reverse ...
... chlorophyll band . As the sheath of animal pro- toplasm slowly advances , the chloro- phyll band falls and , losing its dis- tinct , crenated outline , becomes par- tially disintegrated and is borne to- ward the shell by a reverse ...
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Common terms and phrases
acid alcohol algæ angle of aperture angular aperture animals apparatus appear bacteria balsam band binocular blow-fly body Canada balsam cells centimetre centre chlorophyll coal color croscope crystals cyclosis described desmid diameter diaphragm diatoms disease examination exchange exhibited experiments eye-piece fact field filaments fluid focus Foraminifera glass glycerin histology illumination inch infusoria instrument interest ject jective JOURNAL lens lenses light lines liquid living mass material matter meeting membrane ment method micro micrococci Microscopical Society microscopists minute motion nature numerical aperture observed obtained ocular optical organisms paper placed plants plate pollen-tubes potash prepared present prism Prof protoplasm Protozoa rays refractive refractive index resolving rotifers scopical seen slide solution species specimens spicules sponge spores stained structure substance surface swarm-spores tain telescopic tion tissues tube ture turmeric vegetable York
Popular passages
Page 118 - Ann, and is about three and a-half miles by coach from the Eastern Railroad Company's station in Gloucester. The purpose of this Laboratory is to afford opportunities for the study and observation of the development, anatomy and habits of common types of marine animals under suitable direction and advice. There will...
Page 145 - ... the protoplasm, when its life is gone. Professor Huxley writes concerning protoplasm thus : — " The properties of living matter distinguish it absolutely from all other kinds of things ; and," he continues, " the present state of our knowledge furnishes us with no link between the living and the not living.
Page 146 - ... protoplasm should once have appeared on the globe, as the result of no matter what agency ; in the eyes of a consistent evolutionist any further independent formation of protoplasm would be sheer waste.
Page 166 - ... have no personal ends to serve in an inquiry in which I happen to be a personal factor. Let us then have a test which will forever set at rest this vexed question of resolution. I submit for your consideration the following outline of a test which I venture to think will be sufficient and conclusive: Let Mr. Fasoldt rule three plates under as nearly the same conditions as possible, except in the number of lines in the different bands of each plate. Let him label each plate and accompany it with...
Page 118 - Aerial disinfection, as commonly practised in the sick-room, is either useless or positively objectionable, owing to the false sense of security it is calculated to produce. To make the air of a room smell strongly of carbolic acid by scattering carbolic powder about the floor, or of chlorine, ,by placing a tray of chloride of lime in a corner, is, so far as the destruction of specific contagia is concerned, an utterly futile proceeding.
Page 167 - I observed in the contents a few well defined orange spores, but none of them appeared to have germinated. Fastened between the hairs on the limbs of each of the flies examined I found a number of the spores, and the efforts of the fly to get rid of them only resulted in attaching them more firmly to it. They might, however, be brushed off by objects with which they were brought in contact, while their germinating powers would long outlast the life of the insect itself. It was evident from this experiment...
Page 35 - In such cases as these, external conditions act upon the larvae as they do upon the mature form; hence we have two classes of changes, adaptational or adaptive, and developmental. These and many other facts must be taken into consideration; nevertheless naturalists are now generally agreed that embryological characters are of high value as guides in classification, and it may, I think, be regarded as wellestablished that, just as the contents and sequence of rocks teach us the past history of the...
Page 220 - A bibliography of the Microscope and Micrographic Studies, being a catalogue of books and papers in the library of Julien Deby.
Page 191 - Thus, a mite of a wheel animalcule, l-100th of an inch long, will perhaps appear to be a foot off, and as large as a mouse ; but bring the prisms nearer together, and tilt the oculars to correspond, and the image waxes marvellously immense, and taking a position perhaps apparently more than a hundred feet distant, the being, too small to be seen with...