xrv 



HOW CEOPS GROW. 



Nobbe & Siegert, Exp. on back- 

 wheat 188 



Nodes 262 



Nomenclature, Botanical 299 



Non-Metals 112 



Norton's analyses of oat-plant. .141, 204 



Notation, Chemical 49 



Nttcleus 422,278 



NneleoluB 224 



Nut 300 



Nutrient matters in plant. Motion of.340 



Nutrition of seedling. 313 



" " plant 337 



Oat, ash-analysis 151, 153, 157, 160 



161,162, 378 



" prox. " 378 



" " " detailed 388 



" crop, weight per acre 387 



*' plant. Composition and growth 



of 204, 207, 214, 217 



Oat, proportions of ash in its differ- 

 ent parts 141 



Oats, weight per bushel 162 



Offices of organs of plant 230 



Oil in seeds, etc 89, 90, .394 



" of mustard 114 



"" vitriol 42,116 



Oils, Properties of. 89 



Old seeds. Plants from 807 



Oleic acid 93 



Olein 90, 92 



Orders 293 



Organic matter 29 



Organism i 231 



Organs 221 



Osmose 354 



" mechanical effects on plant. .367 



Osmometer 355 



Ovaries 293 



Ovules 293 



Oxalates 136 



Oxalate of ammonia 86 



" " lime 85, 86 



" " " in walnut 191 



Oxalic acid 85 



Oxide of iron 000 



" " '^ essential to plants 178 



" " " State of, in plant 198 



'* " manganese in ash 179 



Oxides 37 



" of iron, described 127 



" " manganese, described 128 



Oxygen, Properties of 33 



" occurrence in ash 113 



" in Assimilation 326 



" " Germination 314 



Palmitic acid 93 



Palmitin 90, 93 



Parenchyma 232 



Papilionaceous plants 299 



Pappus 301 



Pea, ash-analysis 153, 163, .379 



" prox. " 3S7 



ultimate analysis 45 



Pearlash 130 



Pectic acid .'.82, fyl 



Pectin '. . . ,si 



Pectosic acid 82 



Pectose 81 



Pedigree wheat 144 



Permeability of cells 232 



Peroxide of iron 128 



Petals ; 292 



Phsenogams 299 



Phantom bouquets 57 



Phloridzin 77 



Phosphate of lime 134 



'■' " soda 1S4 



" " potash 1.34 



Phosphates 43, 44, 117, laS 



" function in plants 197 



" relation to albuminoids. 202 



Phosphoric acid 38, 44, 117 



" " in oat-crop 218 



Phosphorite 136 



Phosphorized oils 45, 92 



Phosphorus 43, 117 



" in albimiinoids 102 



" " fats of various plants. 92 



Physics 26 



Physiology 27 



Pinite 78 



Pistils 293 



Pith 209 



" rays 276 



Plastic Elements of Nutrition 104 



Plaster of Paris 133 



Plimmle 303 



Pod 301 



Pollarding 264 



Pollen 293 



Polygonum convolvulus, Eertilization 



of, fig 295 



Pome 301 



Porosity of vegetable tissues 346 



Potato, ash-analyses, . . 154, 103, 165, 377 



" prox. analyses 387 



" " " detailed 389 



" ultimate" 45 



" leaf. Pores of, flg 386 



" stem, Section of, fig 281 



" sugar 74 



" tuber. Structure and Section 



of, fig 2T4,2T? 



Potato tuber, why mealy.. 226 



Potash 124, 1.30 



" lye 124 



" in strand and marine plants. .178 



Potassium 124 



" Chloride of. 135 



Prosenchyma 232 



Protagon 93 



Protoplasm 234 



Protein bodies 94, 103 



Protoxide of iron 127 



" "manganese 128 



Proximate Composition of Crops... 385 



" Elements 153 



Prussic Acid 114 



Puff-balls 232 



Pulp of fruits 233 



Quack grass 2(j(i 



Quautitative relations among ingre- 

 dients of plant 201 



Quartz i-jo 



Qucrcilauuic add no 



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