INDEX, 



299 



Gravity, Specific, how measured.. .208 

 " "of diflfereut sub- 

 stances 209 



Greeu wood for fuel , 274 



H 



Hand-drills 157 



" rakes, sulky 160 



Harrington's Seed sower 157 



" Cultivator 157 



Harrow, Norwegian ^ 144 



'' Morgan 144 



" Scotch, or square 143 



Harvester, Marsli s. 163 



Hay -forks, Horse 173 



" carriers , 180 



" loaders 186 



" rake. Revolving 168 



" " Warner's 169 



" rakes 166 



" " Simple 167 



" stacking machine 184 



" tedder, Bullard's 165 



" " American 166 



" presses. 184 



" sweep 171 



Headers 163 



Heat, Properties of. 260 



" Expansion by 263,271 



" Latent 273 



" Radiation of 276 



Hicks' Hay-carrier 180 



High pressure steam-engines 269 



Hoe-handle, Proper form of 77 



Holbrook's Plow 125 



" Swivel or side-hill Plow.133 

 Horse, day's Avork at difterent de- 

 grees of speed 110 



hoe, Garrett's 147 



power. Estimating 109 



Hay-forks, Operation of. . . .174 



fork, Gladding's 175 



" Palmer's 176 



" Myers' 177 



" Beardsley's 177 



" Raymond's 178 



" Harpoon 179 



" Walker's 179 



" Sprout's 179 



Hydraulic Ram 226 



" " Regulating 227 



Hydrostatic Paradox 203 



Hydrostatic Bellows 204 



" Press 203 



Hydrostatics 198 



Implements required for the farm . . 7 



....9,117 



" Construction and use 



of 115 



Improvements in Farm Machinery. 8 



Inclined Plane 63 



Inertia 11 



" apparatus 12 



" Effects of, on wagons 13, 17 



J 



Joint, Universal 60 



K 



Kirby Mower and Reaper 159 



" Reaper, Hand-i-ake for 160 



" " Self-raking 161 



Knee-joint, or Toggle-joint 71 



Knives in mowers and reapers, 



Form of 158 



Kooloo Plow 118 



I. 



Labor, Application of 108 



" of men and horses 110 



Ladders, Self-supporting 40 



Lapping and flat furrows 127, 128 



Latent heat 273 



" " Advantages of. 275 



Law of virtual velocities 43 



Leveling Instruments 215 



Levers 45 



" of the second kind 45 



" ' first kind 46 



" third kind 46 



" Calculating power of. 49,50 



" Examples of. 46 



" Combination of 50 



Line of direction 36 



Liquids, Velocity of, in falling 211 



" Discharge through pipes. .212 



Loads on sideling roads .....: 37 



Lubricating substances 90 



