48 



CONTENTS. 



branch of philosophy, and in which it is 

 likewise connected with much greater 

 practical benefits and advantages. 



Discoveries made in the cultivation of 

 the earth, are not merely for the time and 

 country in which they are developed, but 

 they may be considered as extending to 

 future ages, and. as ultimately tending to 

 benefit the whole human race; as afford- 

 ing subsistence for generations yet to 

 come; as multiplying life, and not only 

 multiplying life, but likewise providing 

 for its enjoyment. 



Of the general powers of Matter ivJdch 

 influence Vegetation. Of gravita- 

 tion, of Cohesion, rf Chemical Jit trac- 

 tion, of Heat, of Light, of Electrici- 

 ty, ponderable Substances, Elements 

 of Matter, particularly those found 

 in Vegetables, Laws of their Combi- 

 nations and Jirrangements. 



The great operations of the farmer are 

 directed towards the production or im- 

 provement of certain classes of vegetables; 

 they arc either mechanical or chemical, 

 and are, consecjuently, dependent upon 

 the laws which govern common matter. 

 Plants themselves are, to a certain extent, 

 submitted to these laws, and it is necessa- 

 ry to study their effects both in consider- 

 ing the phenomena of vegetation, and the 

 cultivation of the vegetable kingdom. 



One of the most important properties 

 belonging to matter is gravitation, or the 

 power by which masses of matter are at- 

 tracted towards each other. It is in con- 



sequence of gravitation that bodies thrown 

 into the atmosphere fall to the surface of 

 the earth, and that the diflerent parts of 

 the globe are preserved in their proper 

 jDOsitions. Gravity is exerted in propor- 

 tion to the quantity of matter. Hence all 

 bodies placed above the surface of the 

 earth fall to it in right lines, which if pro- 

 duced would pass through its centre; and 

 a body falling near a high mountain, is a 

 little ijent out of the perpendicular direc- 

 tion by the attraction of the mountain, as 

 has been shown by the experiments of Dr. 

 Maskelyne on Schehallien. 



Gravitation has a very important influ- 

 ence on the growth of plants; and it is ren- 

 dered probable by the experiments of Mr. 

 Knight, that they owe the peculiar direc- 

 tion of their roots and branches almost en- 

 tirely to this force. 



( To be continued.) 



PROCESS RECOMMENDED TO FORM 

 WHITE- WAStl. 



One gallon of lime-water is strained 

 through a cloth or hair sieve, to which 

 add one pound of brown sugar and three 

 or four table spoons-full of salt — more 

 salt is required in di'y than in wet weath- 

 er ; and perhaps different degrees of mois- 

 ture in the atmosphere, and diflerent sub- 

 stances to be operated on by the white- 

 wash, may require the relative proportion 

 of lime-water and sugar diflerent from the 

 above statement: experience will be the 

 best guide in mixing the ingredients. 



^OJ%^TEj%^TS Of J%^o, S. FVI. S. of OlBSEMil/^MIi A* liECOHMP. 



LiOcomotive Steam Engines, 35 



Rlieumatism, to prevent or cure (lie Si 



<Jn Raisini; Oran!;es and Lemons tVom Cuttings, 34 



On tlie Bliglit in I'car Trees, S4 



Upon the Culiivatioii of tlie Peacli Tree and the Preservation of it, 35 



Chinese Mulberry, (Morus Multicaulis) how to preserve in Winter, 35 



Beet Root, Kuta Haga and Hand Drill to plant Seed, 36 



Description of a Uiiiter Pot, to ))reserve butter from becoming rancid in warm weather or hot climates, 37 



An improved construction of a fiorse Shoe, 37 



Rules for ascertaining ttie age of Horses by inspection of tlieir Teeth, 38 



On planting anil reaiing Thorn Hedges, 3f^ ^ 



Silk Manufacture, 40 



Definition of Terms, 40 



Remarks upon the Preservation of Timber, 42 



On a Method of Drawing extremely fine Wires, 4'2 



On the Barometer, 43 



On the Preservation of Zoological Specimens, 43 



Agricultural Chemistry, 44 ^ 



Process recommended to form While- wash,. 48 



