TABLE OF CONTENTS. 
INTRODUCTION ..... i aposealetasor slain fevatn onic’ ola ocaictunve “cb oulve¥e aiaiasbrayore Beemer ene U 
DIVISION I. CHEMICAL ‘COMPOSITION OF THE PLANT. 
Cuap. I.—TuHe VoLaTILE PART OF PLANTS......0002eceeereeeeeesecees aareteCoen ee 
1. Distinctions and Definitions ow 
2, Elements of the Volatile Part of BIA asics cooxenacenptors gees 31 
Carbon, Hydrogen, Oxygen, Nitrogen, Sulphur. Phosphor- 
us, Ultimate Composition of Organic Matter. suhiedscens UB 
8. Chemical Affinity.. seeeeee 46 
4, MEE SUAS Ore suit inds or Proximate ‘Blements.. ee 
‘Appendix, Chi 109 
Cuar. I.—Tue Ash OF PLANTSi.........000c ee eeeee Nt 
§ 1. Ingredients of the Ash. . lll 
Non-metallic Elements...............ce-cse08 112 
Carbon and its Compounds... wisi - 118 
Sulphur ne x . 114 
Phosphorus * ‘“ ie z 117 
Silicon eth ee as A eee 119 
Metallic Elements................... % LENOIR 0123 
Potassium and. its Compounds... a Rikle «124 
Sodium Wicieipiojesdsinusesigsan 124 
Calcium aes BE cS. « Baceistsia aioreisveiviate 2 el 
Magnesium and its Compounds. visislsieie oisav 126 
Tron age «12% 
Manganese ‘* ‘“ Biot nvelessie ots ‘ 
SACS i sis sisi sciainicin ascis swaioivic biel iin 
Carbonates.......... 
Sulphates..... ciate ataie 
. Phosphates 
Chlorides... 
Nitrates....... . 
§ 2. quant, Distribution, “and Variations of the ‘Ash... 1 
‘able of Proportions of Ash in Vegetable Matter....... 
§ 3. Special Composition of the Ash of “Agricultural Plants.. 4 
1. Constant Ingredients............0.0.eeeeee ene ceeeeees 
2. Uniform composition of normal specim’s of given plant. is 
Table of Ash-analyseS...........c..00 ceeeeeeeeeenee --150 
3. Composition of Different parte of Plant............005 15% 
4. Like composition of similar plants..............+6+ +159 
5. Variability of ash of same species............ .....0.5 
6. What is normal composition of the ash ofa plant?..... 
% To oe extent is each ash-ingredient essential or acci- 
ental........... a aie sieiate araiciisass 
Water-culture......... 
Essential ash-ingredients.......-.-+-s-+r- +s... 
Is Soda Essential to Agricultural Plants?..... 
Oxide of Iron indispensable..... oles 
Oxide of Manganese unessential 
Is chlorine indispensable ?. 
Silica is not essential... 
Ash-ingredients taken up cel 
= Disposition of superfluous matters 
State of Ash-ingredients in plant 
4, Functions of the Ash-ingredients..... O 
Cuap. III.—§ 1. Quantitative Relations among the Ingre ant: 20 
2. Ppaipeaiion of the plant in successive stages of plea ao 203 
Composition and Growth of the Oat Plant.................., 
DIVISION I1.—T: STRUCTURE OF THE PLANT AND OFFICES OF 
ITS ORGANS. 
Cup. I.—GENERALITIES,..........+.5- ped convsscveneresneseccccnscersens acne tal 
OF gaia, OFANS sccises crersened e050 sResneCeeereeieennuE eel 
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