XXVI TABLE OF CONTENTS. 



PAGK 



Practical disinfection of seecl-eorn 323 



121. Acetic Acid, CH.,C0H0. 



Preparation - " 323 



Properties 323 



Action on funt,'i and their spores .-----.. 323 



Uses - - - 324 



Use as pickle for seed-corn 324 



Use against gum of stone fruit trees 324 



122. Oxalic Acid, COOH . COOH. 



Properties -------..... 324 



Action on fungi -.-.---.... 324 



Uses 324 



Uses against canker of pear-tree - - 324 



CHAPTER XX. 



Carbon Compounds {contimied) — Oils and Fats — Soaps — Hard Soap — Soft Soap — 

 Whale Oil Soap — Fish Oil Soap 323-333 



123. Natural Oils and Fats (Glycerides) ------- 325 



PiOperties -....- 325 



Colza oil - - - - 325 



Poppy oil " - - - - 32& 



Olive oil ----- 325 



Linseed oil ----------- - 325 



Whale oil ------------ 325 



Action on plants - . - - 325 



Action on insects - - - 825 



Uses - - - - 325-7 



Uses against insects 325-7 



124. Soaps. 



Preparation - 327-8 



Solubility of soaps ---.---... 327 



1. Hard soaps ----- 327 



Marseilles soap 327 



Soap boiling - - - - 327 



2. Soft soaps - - 328 



{a) Whale oil soaps --------- 328 



(b) Fish oil soaps - - - 328 



(c) Black soap (green soap) 328 



Insecticide preparations ---.--... 328 

 Composition of (recipe, for) a few insecticides - . . . 328-9 



Action of soap on plants - 329 



Action on insects - - - 329 



Action of Mart^eilles soap - - . 329 



Action of hsh oil soap - . - - - - - - - - - 329 



Action of whale oil soap --------- 329 



Uses - - - - 329-33 



Use against cryptogamic diseases - - - - - ' - - - 329 



Use against insects --------- 329-33 



Halsted and Keisey's recipe --------- 329 



Marlatt's recipes ----------- 329 



Targioni's recipes 330 



Ducloux recipe 331 



Lowe's recipe - . 331 



Taschenberg's recipe ---------- 331 



Delacroix recipe ----------- 331 



Muhlberg's recipe ----------- 331 



Nessler's recipe 332 



