INDEX. 



330 



Leaves, transpiration how influ- 

 enced by, 139, 2S9 



transpire water, 137 



to be cleansed, 139 



their pores or stromates, 



140 



170 



absorb carbonic acid, 144 

 their colours in decay, 149 



direction, 151 



in excess prevent flowers, 



required by fruit, 178 



propagating by, 183 



expand, when light is de- 

 ficient, 207 



variegated, 136 



Legume, 213 



Liber, 128 



Life, vegetable, what is. 309 



conquers chemical affinities, 



327 



can it be prolonged in- 

 definitely, 331 



Light, influence on germination, 41 



influence over colour, 135. 



149 



consequences of deficient, 



206, 326 



required to ripen fruit, 218, 



234 

 particular degrees of required, 



252 

 Lime, 71, 108, 109, 110 

 Lime in soils, &c., 80 



Magnesia in soils, &c., 80 



when injurious, 110 



Male flowers, to produce, 325 

 Malpighi, 4 



Manganese in soils, &c., 81 

 Manures, why useful, 81, 88 



rendered soluble by 



decay, 93 



fresh, economical, 94 



how to try, 100 



Manures absorb moisture, 101 



retain moisture, 103 



rules for inserting, 43, 87 



stimulate plants, 104 



yield gases, 106 



destroy vermin, 108 



promote decay, 109 



influence a soil's tempera- 

 ture, 109 

 Marl, 111 

 Marvel of Peru, decay of its leaves, 



297 

 Medulla, 133 

 Melon seed, 9 



blossoms, 326 



Mentha piperita, 183 



arvensis, 119 



Mexican coniferse, 317 

 Mimosa sensitiva, 105 

 Mists, cause of, 24 



on undrained soil, 123 



Moisture required by fruit, 237 



excessive, injurious, 313 



-: . — renders a plant susceptible 



of cold, 319 

 Morphologj', 170, 206 

 Moss, to destroy, 129 

 Motion aids cold to be injurious, 319 

 Mules produced by intermixing 



species, 202 

 Multiplicate-flowers, 205 

 Myrica-gale, 120 



Nectarine thinning, 311 

 Nerves ] Have plants, 314 

 Netting, why useful, 219 



which best, 220 



Nettle, 117 



Night temperature, 162 

 Nitrate of potass, 81 

 Nitrogen in seeds, 9, 11 

 absorbed during germina- 

 tion, 36 

 Nyraphoea alba, 209 



