Quarterly Journal of Microscopical Science, Volume 1Samuel Highley, 1861 |
Other editions - View all
Common terms and phrases
acid algæ angles animal antennæ aperture appear appendages arsenious acid Barbadoes deposit become binocular body branches carbonate cell-wall cells central centre Collema colour convex crystals described diameter diatom Diatomaceæ disc distinct Ditto Echinoderms elementary embryo examination exhibited existence extremity fever fibres fluid Foraminifera formed material frustule genus germinal matter glass globules gonidia granular granules growth inch Infusoria insect Journal layer length lens liquor sanguinis Lyngbya margin mass maxillæ membrane Micr microscope MICROSCOPICAL SOCIETY minute mucous Navicula nodule Nostoc nucleolus nucleus object-glass objects observed octahedron organs oviduct ovum pair paper papillæ particles plates polypide portion present prism produced Professor pseudo-nodule puncta rays remarkable rounded rounded angles seen segmentation shells side slides species specimens stage striæ striation structure substance surface tion tissue transparent transverse Triceratium tube uterus valve vessels Volvox whilst zoospores دو وو
Popular passages
Page 212 - Who sees with equal eye, as God of all, A hero perish, or a sparrow fall, Atoms or systems into ruin hurl'd, And now a bubble burst, and now a world.
Page 234 - ... although not in the adult human blood corpuscle. The opinion generally received is certainly that the human red blood corpuscle is a cell with red contents, the nucleus of which has disappeared, or else it is the free nucleus of a cell, — and here the question is dismissed. But the blood corpuscle may also be regarded as a corpuscle consisting of matter of different density in different parts, being firm externally, but gradually becoming softer, so as to approach to the consistence of fluid...
Page 236 - Y. ON THE MODE OF FORMATION OF SHELLS OF ANIMALS, OF BONE, AND OF SEVERAL OTHER STRUCTURES, by a Process of Molecular Coalescence, Demonstrable in certain Artificially-formed Products.
Page 109 - ... familiar with operations of this kind are looked upon as unavoidable ; but that on the 25th band is rather large to be accounted for in this way. We are unable to explain it, and can only say that our repeated measurements of it were very carefully made. These experiments, together with those of others before noticed, induce us to believe that the limit of the resolvability of lines, in the present state of the objective, is...
Page 251 - cells/ or ' cellular elements' of the morbid growth, and the latter with the vessels themselves, form the ' matrix/ or walls of the areolae or spaces in which the cells lie. When we consider what a very slight derangement of the elementary parts at an early period of development would infallibly lead to the suppression or exaggeration of normal structures, which are their direct lineal descendants, is it not wonderful that morbid growths (irregular growth of one or more tissues) or monstrosities...
Page 88 - Palmoglaa, &c., confide them to the care of lichenologists, and thus add a new field for their observations, and a new phase in the life-history of those curious organisms. Hitherto the origin of Nostoc has only been traced up to Collema, and to the gymnocarpous lichen above mentioned ; but as researches have only been recently made in this direction, it is by no means improbable that other instances may be added to their number. There is one point to which I wish to draw the attention of observers,...
Page 234 - I have never succeeded in seeing the cell-wall said to exist, neither have I been able to confirm the oft-repeated assertions with regard to the passage of liquid into the interior of the corpuscle by endosmose, its bursting and the escape of its contents through the ruptured cell-wall. When placed in some liquids, many of the corpuscles swell up and disappear • but I have never seen the ruptured cell-walls.
Page 183 - No. 8. A section of a healthy liver under an inch object-glass. The portal vein was injected with carmine, and the hepatic vein with Prussian blue. The capillaries of the lobule were filled with the colouring matter — those in the centre of each lobule being blue, while those at the circumference are red. The interlobular fissures were very narrow, and in many places the capillaries of one lobule were continuous with those of adjacent lobules. The interlobular spaces were clearly destitute of any...
Page 254 - Beale proposed to call secondary deposits. The germinal matter will always be found between these and the so-called cell-wall. It is possible that these substances are precipitated in consequence of certain changes having occurred in the formed material in the interior, of a different nature to those which led to the formation of the envelope or cell-wall on the external part of the mass. In many cases the secondary deposits accumulate as long as any germinal matter remains in a living state.
Page 248 - It appeared at the lower angle of the scapula of a boy, aged twelve years, and when first noticed was about the size of a bantam's egg. In six months it measured twenty-seven inches in circumference. It was firm and hard, and was intimately adherent to the scapula. The case occurred in the practice of Dr.