The Philosophical magazine; a journal of theoretical, experimental and applied physics . charge, and the diameter of the barrel forwhich they are intended, are then marked on the cartridge thus:----- i. e. No. 4 shot 2i oz. for barrel -72diameter. This is essential, as some cartridges remain in stock many years, and^ although promiscuously mixed together, are easily separated. If the above occupies too much space to be admitted at length, please to make such extracts as you think on the subject of fowling-pieces, I beg leave to remark,that although numerous excellent sporting guns ar
The Philosophical magazine; a journal of theoretical, experimental and applied physics . charge, and the diameter of the barrel forwhich they are intended, are then marked on the cartridge thus:----- i. e. No. 4 shot 2i oz. for barrel -72diameter. This is essential, as some cartridges remain in stock many years, and^ although promiscuously mixed together, are easily separated. If the above occupies too much space to be admitted at length, please to make such extracts as you think on the subject of fowling-pieces, I beg leave to remark,that although numerous excellent sporting guns are produced;vet no scientific principle has been laid down, on which to pro-ceed with a certainty of obtaining this desirable end. From avariety of experiments, I am induced to believe there is a certainratio between the length of the barrel and diameter of the bore,which gives the maximum of perfection. Perhaps some of yourscientific readers will favour the public with some observations onthis subject. I am, sir, your obedient servant. Old Ford, Oct. 12. 1821. Jos. StEEVENS. JVr/. /.. Section of the Former, LXVII. Remarks tending to facilitate the Analysis of Springand Mineral Waters. By John Dalton *. Xt cannot but fall under the observation of every one, that t}>ehealth and comfort of families, and the conveniences of domesticlife, are materially affected by the supply of that most necessaryarticle, water. The quality of water is undoubtedly of great im-portance in the arts of brewing, baking, and various others con-nected with the preparation of food; as also in the washing and * From the Memoirs of the Literary aiid Philosophical Society of Man-chester. O o 2 bleachina: 292 Remarks tending iofacilUabe tim Analysis bleaching of linen and cotton, and in other operations uher(?cleanliness is the object in view. Many of the manufactories arcmaterially interested likewise in the qualities of water, and in themethoils of rendering it subservient lo iherr exigencies when ithapp
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