ما يقوله الناس - كتابة مراجعة
لم نعثر على أي مراجعات في الأماكن المعتادة.
طبعات أخرى - عرض جميع المقتطفات
acetic acid added alcohol alkali alkaloids alum alumina ammonia ammonium antimony applied arsenic arsenious acid Balsam bath beer bismuth boiling bottle butter calcium camphor carbonic acid caustic Cement cerate charcoal cheese chloric acid chloride cold water colour containing cool copper crystallised crystals digested dilute dissolved distilled doses dried employed ether evaporation Fahr filter flavour flour fluid galls glass grains hydrate hydrochloric acid hydrogen iron lime liquid liquor manganese matter medicine melted mercury metal milk mixed mixture nitrate nitric acid obtained odour oxide pint poisonous portion potash potassa potassium powder precipitate Prep prepared produced Prop pure quantity rectified spirit resin sal ammoniac salt soda sodium soluble solution spermaceti spirit stomach substance sugar sulphate sulphide sulphuric acid temperature tincture tion tube vapour vessel washed weight whilst yellow zinc
الصفحة 4 - MRCP— Member of the Royal College of Physicians. MRCS— Member of the Royal College of Surgeons.
الصفحة 3 - FRGS Fellow of the Royal Geographical Society. FRS Fellow of the Royal Society. FRSE Fellow of the Royal Society of Edinburgh. FRSL Fellow of the Royal Society, London; also Fellow of the Royal Society of Literature. FSA Fellow of the Society of Antiquaries.
الصفحة 34 - A white, usually amorphous, solid, soluble in 150 parts of cold, and 50 of hot water, and much more soluble in alcohol and in ether ; strongly alkaline to reddened litmus, neutralising acids, and precipitated from them by the caustic alkalies, but not by carbonate of ammonia or the bicarbonates of soda or potash. It melts with heat, and burns with a smoky flame, leaving no residue when burned with free access of air.
الصفحة 38 - If it contain any added poisonous ingredient, or any ingredient which may render such article injurious to the health of a person consuming it...
الصفحة 217 - Add very cautiously, with constant stirring, a solution of carbonate of potash so as nearly to neutralise the acid, care, however, being taken that an excess is not used. Set to rest for six hours, then filter, and add carbonate of potash in such quantity that the liquid shall acquire a decided alkaline reaction. Place...
الصفحة x - I saw that one inquiry only gave occasion to another, that book referred to book, that to search was not always to find, and to find was not always to be informed ; and that thus to pursue perfection, was, like the first inhabitants of Arcadia, to chase the sun, which, when they had reached the hill where he seemed to rest, was still beheld at the same distance from them.
الصفحة ix - I should revel away in feasts of literature, the obscure recesses of northern learning, which I should enter and ransack, the treasures with which I expected every search into those neglected mines to reward my labour, and the triumph with which I should display my acquisitions to mankind.
الصفحة ix - Yet these failures, however frequent, may admit extenuation and apology. To have attempted much is always laudable, even when the enterprise is above the strength that undertakes it : To rest below his own aim is incident to every one whose fancy is active, and whose views are comprehensive ; nor is any man satisfied with himself because he has done much, but because he can conceive little.
الصفحة 486 - They are four in number, and to the following effect : — 1. All chemical compounds are definite in their nature, the ratio of the elements being constant. 2. When any body is capable of uniting with a second in several proportions, these proportions bear a simple relation to each other. 3. If a body. A, unite with other bodies, B, C, D, the quantities of...
الصفحة 152 - Increase the power of your glasses, and you will soon perceive, inhabiting the same drop, other animals, compared to which the former were elephantine in their dimensions, equally vivacious and equally gifted. Exhaust the art of the optician, strain your...