Götterlehre oder mythologische Dichtungen

Moritz, Karl Philipp

Bibliografische Daten

Monografie

Persistenter Identifier:: 1503406532162

Titel:: Götterlehre oder mythologische Dichtungen

Autor:: Moritz, Karl Philipp

Verleger/Verlag:: Haas

Erscheinungsort:: Wien [u.a.]

Erscheinungsjahr:: 1807

Umfang:: 380 S.

Sprache:: deutsch

Strukturtyp:: Monografie

Standort:: Universitätsbibliothek Stuttgart

Signatur:: 1L 2406(2)

Lizenz:: https://creativecommons.org/publicdomain/mark/1.0/deed.de

Kapitel

Titel:: Die Lieblinge der Götter

Strukturtyp:: Kapitel

Kapitel

Titel:: Tithonos

Strukturtyp:: Kapitel

a Meetings for the Week. shromate, and abandoned the process, but returned to it again in consequence of the researches of E. Donath (Zeitschrift Anal. Chemie, xviii, p. 78). The latter chemist maintains that the separation of iodine is due to the sresence of free chromic acid. M. Richter has therefore repeated his experiments with dichromate free from free chromic acid, and with potassium iodide containing neither potassium iodate nor free iodine, but obtained the same results as before. For greater certainty the experiment was performed in an atmosphere of hydrogen, and the water used had been freed from dissolved oxygen by re- seated boiling. The iea&ion ay be employed for dete@ing dichromates present in monochromates, espe- cially if potassium iodate is added along with the potas- sium iodide, Mohr has investigated the same readiion (Zeit. Anal, Chemie, xi., p. 278), but, like Donath, con- cludes that no iodine is set free, and cites this reaction in support of his opinion that the dichromate is not an acid, but a neutral salt. M. Richter, on the other hand, has succeeded in showing by means of phenol-phthaleine that the monochromate possesses no basic properties, and must be regarded as the neutral salt, : Decomposition of Nitrous Oxide and of a Mixture of Nitrous Oxide.and Nitric Oxide at a Red Heat. A. Wagner.—The author examined if nitrous oxide can oe determined by means of its oxidising action upon an ignited mixture of chromium sesquioxide and sodium carbonate in the absence of air, and was completely suc- cessful. The nitrous oxide decomposed can be deter- mined either by the volume of the nitrogen liberated or Yy the quantity of sodium chromate formed, since 1 vol. nitrous oxide yields 1 vol, nitrogen, and 1 part chromium oxide requires 0°3136 oxygen for conversion into chromic acid. The author found by especial experiments that by aeat alone, in the absence of the mixture of sodium carbonate and chromium sesquioxide, only 28:2 per cent of the nitrous oxide is decomposed. A mixture of equal vols. nitrous and nitric oxide is entirely decomposed under the same conditions, giving up all its oxygen, whilst any excess of nitric oxide escaped unchanged. Volumetric Determination of Ferrous Oxide in Hydrochloric Solution by Means of Potassium Per- manganate, and the Question of Chemical Induction in General,—Fr. Kessler,.—The author points out that the experimental results of Clemens Zimmermann (Zeit. Anal. Chemie, xxi., p. 108) have been anticipated by his own researches published in Poggendorff’s Annaler (cxviii., b. 48, and cxix., p. 225). This phenomenon, along with many analogous facts, the author explains by the general principle that mutually indifferent bodies existing in solu- tion together may be rendered adive by transformations taking place in the same liquid. This process, following the example of Bunsen, he calls “ chemical inducion.” Thus the oxygen dissolved in water, tolerably inacive as regards stannous chloride, is rendered aQive if this salt of ccurse in hydrochloric solution, is converted into stannic chloride by means of permanganate or chromic acid. The author mentions the paradoxical case that chromic acid may a& as a reducing agent. If a few grammes potassium antimony tartrate are dissolved in water, and hydrochloric acid added to prevent turbidity, ferric chloride and potassium ferricyanide if present do not react upon each other. But if a few c.c. of chromic acid bz added the liquid turns blue. Testing Butter. —Dr. J. Munier.—The author criticises che original process of Hehner, and the modification pro- posed by Reichert (Zeit. Anal. Chemie, xviii., p. 68), which he finds untrustworthy. From a series of analyses carried on during an entire year it appears that the proportion of volatile acids fluctuates with the season, and is lowest ia October, November, December, and January, In February there was a sudden and well-marked increase of the fatty acids, which continues till August, and then gradually declines. Hence different limits must be established for the different seasons. 49 NOTES AND QUERIES, +* Our Notes and Queries column was opened for the purpose of giving and obtaining information likely to be of use to our readers generally. We cannot undertake to let this column be the means of transmitting merely private information, or such trade notices as should legitimately come in the advertising columns. Vitriol Chamber.—A subscriber wishes to know the proportions of a chamber necessary to make 650 lbs, of 66° Baimé sulphuric acid ser diem from lralian sulphur, where there are seven months cold veather, three temperate, and two hot ?—SUBSCRIBER. Precipitation of Carbonate of Lime from Water.—Some ime ago I saw it stated in a report by Dr. Angus Smith on the water round Manchester that caustic soda wouid precipitate carbonate of ime from water, Having reason to doubt this, I made strong solution of carbonate of lime in water by means of carbonic acid gas, and iterwards added some solution of NaHO, but failed to get a precipi- ate. I also tried the effet of adding NaHO to a water containing ;arbonates and sulphates of lime in equal proportions, and got a pre- cipitate ofthe sulphate, but it did not touch the carbonate. Lr. Smith also states that if NaHO be added to a water containing CaCQy and Ca80,, the NaHO will combine with the CO, which holds the CaCOy in solution, forming Na,CO,, which in turn will a® on the CaSO, ind cause a precipitate of CaCO, leaving Na,SO, in solution. Would any of your contributors kindly state if this is the case, as I aave tried the experiment and do not get these results.—W. G. MEETINGS FOR THE WEEK, Monpay, Jan. 2g.—London Institution, 5. —_— Medical, 8.30. —— Society of Arts, 8. Cantor Le®ures. * Solid and Lig Illuminating Agents,” by Leopold Ficld, . .C.S. . TuEsDAY, 30th.~Rovyal Institution, 3. * Primzval Ancestors of Existing Vegetation,” by Professor W, C. Williamson. —_— Institution of Civil Engineers, 8. —_— Society of Arts, 8. © Life among the Turkoman . Nomads,” by Edmond O'Donovan. WEDNESDAY, 31st.—Society of Arts, 8. * Ensilage in the United States,” by Prof, Thoroid Rogers. THURSDAY, Feb. 1st.—Royal Institution, 3. * Lhe Spectro cope and its Applications,” by Professor Dewar. —_ London Institution, 7. —_— Royal, 4.30. —_— Chemical, 8, Ballot for the Election of Fellows. “Some Derivatives of Fluorene,” by W. R. KE. Hodgkinson, Ph.D.,and F. E. Matthews, Ph.D. FRIDAY, 2nd, —Royzal Institution, 8, * The Size of Atoms,” by bir William Thomson, at g. —_— Geologists’ Association, 7 30. (Anniversary). SATURDAY, 3rd.—Royal Institution, 3. “Sir John Lawrence and the Mutiny, 1857,” by Mr. R. Bosworth Smith. ———raly TO CORRESPONDENTS. W, G.—To give the tables referred to would nearly fill a number of he CH=HICAL NEWS. TEXT-BOOKS OF SCIENCE, Now ready, pp. 450, with 183 Wogdcuts, price 6s., cloth, PHYSICAL OPTICS. By R.T.GLAZEBROOK, M.A, F.R.8., Fellow and Le&urer of Trinity College, Demun- strator of Physics at the Cavendish Laboratory, Cambridge. London: LONGMANS & CO. EDITED BY HENRY WATTS, B.A, F.R.S, Editor of the Journal of the Chemical Society. [fownes’ Physical and Inorganic Chemistry. Twelfth Edition, with Coloured Plate and 154 Engravings, crown §vo., 8s. 6d. ALso TOWNES’ CHEMISTRY of CARBON COMPOUNDS, or ORGANIC CHEMISTRY. Twelfth Edition, with Engravings, crown 8vo., 10s. London: J. & A. CH URCHILL, 1, p ew Burlington Street. THE JOURNAL OF SCIENCE. Now Ready, No. CIX., for JANUARY, Price 1s. 6d. CONTENTS. tr. Speech in Animals, t. Patent-Law Amendment. By An Old Technologist, 3. On Anthropological Forecasts. By F. Ram. t. Compound Organisms and their Lessons. 3 On lech ical Education, By Robert Galloway, M.R.LA. % Uhe Meteorology of Shakspere. . index, &c., to Vol. IV. Analyses of Books, Correspondence. Notes, London; 3, Horse-Shoe Court, Ludgate Hill,

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