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acid gas action alcohol ammonia Annals appears ARTICLE ascertain Astronomical atmosphere axis baking baryta body bread brome bromic acid bromuret carbonic acid carbonic acid gas centre chemical chlorine Cloudy colour combination combustion contain copper crystals decomposed decomposition deviation dipping needle direction disc dissolved distance dough edge effect elastic equator evaporation experiments fermentation flame flour fluid gaseous gases glass gluten grains Greywacke heat horizontal needle hydrobromic acid hydrogen inches iron liquid magnesia magnetic mass matter means mercury meridian metallic mixture muriatic muriatic acid naphthaline nearly NW Clear observations obtained ounces oven oxide oxygen paper pendulum phaenomena plane plate revolved pole portion potash precipitate produced proportion Pulo quantity rain remarkable rotation saccharine salt Society soda solid soluble solution specific specific gravity specimens starch stars stone substance sulphate sulphuret sulphuric acid surface temperature thermometer tion tube vapour
Seite 229 - Between the brain and the muscles there is a circle of nerves ; one nerve conveys the influence from the brain to the muscle, another gives the sense of the condition of the muscle to the brain.
Seite 314 - I have had occasion to dig up a great number of bowlders, of red sandstone, and of the conglomerate kind, in erecting a cotton manufactory; and it was not uncommon to find them worn smooth on the under side, as if done by their having been dragged over rocks and gravelly earth, in one steady position.
Seite 469 - that the moon is inhabited by rational creatures, and that its surface is more or less covered with a vegetation not very dissimilar to that of our own earth.
Seite 271 - After the butler is melted, and the potashes and alum are dissolved in a little hot water, these three ingredients, along with the treacle, are poured among the flour, which is to form the body of the bread. The whole is then incorporated by mixture and kneading into a stiff dough.
Seite 149 - Its composition is as follows : — decrepitated muriate of soda 100 parts; slaked lime 100; sand 140; clippings of glass, of the same quality, from 50 parts to 200. Sulphate of soda likewise offers a great economy in its employment. The results are very satisfactory. The glasses made with this salt were of a very fine quality.
Seite 237 - On observing the bird, he found it engaged in examining and watching "some object near the spot where it stood, which it continued to do for some minutes. After that, it moved with considerable apparent caution, to a little distance from the spot where it had alighted, and then extended one of its wings, which it kept in continual motion. Soon after this artifice, the gentleman remarked a large snake raise its head to a considerable distance from the ground, which seemed to be what the bird was longing...
Seite 221 - Sicilian mountains, an expression strictly applicable to the relation which it bears to the hills in its immediate neighbourhood, all of which have been formed by successive ejections of matter from its interior. " The grandest and most original feature indeed in the physiognomy of Etna, is the zone of subordinate volcanic hills, with which it is encompassed, and which look like a court of subaltern princes waiting upon their sovereign.
Seite 228 - If all that is necessary to the action of a muscle be a nerve to excite contraction, these branches should have been unaccompanied ; but on the contrary I found that before these motor nerves entered the several muscles, they were joined by branches of the nerves which came through the Gasserian ganglion, and which were sensitive nerves. I found the same result on tracing motor nerves into the orbit, and that the sensitive division of the fifth pair of nerves was transmitted to the muscles of the...
Seite 363 - ... was fermented, and when the fermentation had arrived at the proper point, formed into a loaf. The loaf was carefully enclosed in a distillatory apparatus, and subjected for a considerable time to the baking temperature. Upon examining the distilled liquid, the taste and smell of alcohol were quite perceptible, and by repeatedly rectifying it, a small quantity of alcohol was obtained of strength sufficient to burn and to ignite gunpowder by its combustion. The experiment was frequently repeated,...