iii CONTENTS. 



tnl nuuMM MinuteneflB of the quantity of carbonate of ammonia 

 earning aggrcfcation Action uf other huIIm uf ammonia ()f other sub- 

 stances, organic fluidti, &c. ()f water ()f heat Uedissolution of the 

 aggregated maoaes l^roxinmte cauM^ of the aKgrcKution of the proto- 

 plMm Summary and concludinK remarks Supplementary observa- 

 tions on aggregation in the roots of plants . . . Phages 33-5S 



CHAPTER IV. 



The Effects of Heat on the Leaves. 



Nature of the cxperimentB Effects of boiling water Warm water canaea 

 rapid inflection Water at a higher temperature does not cause imme- 

 diate inflection, but does not kill the leaves, as shown by their subse- 

 quent re-expansion and by the aggregation of the protoplasm A still 

 higher tenipi^raturc kills the leaves and coagulates the albuminous 

 contents of the glands 5&-(i3 



CHAPTER V. 



The Effects of Non-niteoqenous and Nitrogenous Oboanic 

 Fluids on the Leaves. 



Non-nitrogenons fluids Solutions of gum arable Sugar Starch Diluted 

 alcohol Olive oil Infusion and decoction of tea Nitrogenous fluids 

 Milk Urine Liquid albumen Infusion of raw meat Impure 

 mucus Saliva Solution of isinglass Difference in the action of 

 these two sets of fluids Decoction of green peas Decoction and infu- 

 sion of cabbage Decoction of grass leaves .... 64-70 



CHAPTER VL 



The Digestive Power of the Secretion of Droseea. 



The secretion rendered acid by the direct and indirect excitement of the 

 glands Nature of the acid Digestible substances Albumen, its di- 

 gestion arrested by alkalies, recommences by the addition of an acid 

 Meat Fibrin Syntonin Areolar tissue Cartilage Fibro-cartilage 

 Bone Enamel and dentine Phosphate of lime Fibrous basis of 

 bone Gelatine Chondrin Milk, casein and cheese Qluten Legu- 

 min Pollen globulin Uecmatin Indigestible substances Epider- 

 mic productions Fibro-elastic tissue Mucin Pepsin Urea Chitine 

 Cellulose Gun-cotton Chlorophyll Fat and oil Starch Action 

 of the secretion on living aeeda Summary and concluding remarks. 



71-110 



CHAPTER VH. 



The Effects of Salts of Akmonia. 



Manner of performing the experimenta Action of distilled water in com- 

 parison with the solutions Cbrbonate of ammonia, absorbed by the 



