Magnetical Investigations 2 Volume Set

Volume 1: Part I: 1. Introductory observations; 2. Description of ready and effective processes for magnetizing large bars and thin plates; 3. The ready determination of the proportional directive powers of magnetic needles or bars; 4. The determination of the relative strength or tenaciousness of the magnetic condition; 5. The determination of the ratio of the power of magnets; 6. The determination of the relative degree of hardness or temper; 7. The determination of the quality of bars, plates, or instruments constructed of steel; 8. Inferences, from these investigations; Part II: 1. As to the powers of combinations of magnetized plates of tempered steel in contact; 2. On the powers of combinations of magnetized steel plates separated by limited spaces; 3. On the relative powers of combinations of magnetized steel plates or bars; 4. On the relative powers, in combination or separately, of hard plates or bars of steel; 5. On the magnetical powers of steel plates; 6. On the effects of the annealing of hard steel plates; 7. On the powers of hard steel bars combined in various ways; 8. Of the magnetical powers, receptive and permanent, of cast iron; 9. On the measure of permanency of the energy in straight-bar magnets. Volume 2: Part III: 1. General view of magnetical phenomena; 2. On the action of terrestrial magnetism on iron and steel of various kinds; 3. On the effects of percussion, bending, friction and other mechanical action; 4. On the development of magnetical properties; 5. Indications, explanatory of certain peculiar magnetic phenomena; 6. On the application of principles affecting the magnetical condition of iron; Part IV: 1. On the general disturbing influence of the iron in ships on the action of the compass; 2. On the effects of percussion on heavy plates of rolled iron; 3. On the special condition of the magnetisms in iron ships; 4. Experimental researches on the operation of principles effecting changes in the distribution of the magnetisms in iron-built ships; 5. On certain special influences calculated, not improbably, to affect the magnetic distribution; 6. Practical deductions and suggestions; 7. Cases, incidents and examples.