TABLE OF CONTENTS. XXVll 



CHAPTER XXI. 



Carbon Compounds [continued) — Products of the Aromatic Series : Benzol — 

 Coal Tar — Wood Tar— Naphthalene, 



PAGE 



125. Benzene, CgH^ 334-7 



Preparation ----- 337 



126. Tar - 337 



1. Coal tar - - - - - - - - - - - 337 



2. Wood tar - 337 



Action of tar on plants ---------- 337 



Action of tar on insects ---------- 338 



Uses ------------ 338-43 



" Rubinia," composition of - - - - 338 



Tetard's recipe - - . - 338 



Howard's recipe ----------- 338 



Balbiani's ointment, recipe - - - - 338 



Rathay's bouillie ------ 338 



Use as weedkiller --.-..---- 338 



Use against fungi -------- . . - 338 



Use on insects ..---.---- 339-43 



De Quercio's recipes --------- 342-3 



Use against rabbits and mice -------- 343 



Use against birds ------ 343 



Use against birds, Howard's recipe ..-.--- 343 



127. Naphthalene, C^„Hy. 



Preparation 343 



Properties - - - 344 



Balbiani'^ ointment, recipe - - - 344 



Action on plants - - - - 344 



Action on seed germination 344 



Action on insects ----------- 344 



Uses ----- 344-7 



Naphthalenized sawdust --------- 346 



Pradel's naphthalene mixture -------- 346 



Taschenberg's mixture ---------- 346 



Mixtures to kill woolly aphis --------- 347 



Guozdenovic's mixture ----- 347 



A German mixture against phylloxera ------- 347 



Guozdenovic's mixture against cochineals 347 



CHAPTER XXII. 



Carbon Compounds (c nitinued) — Terpenes — Oleo Resins — Galipot — Turpentine — 

 Rosins — Rosin Soaps — Rosin Emulsions — Metallic Rosinates — Copper Rosin- 

 ate — Camphor. 



Terpenes - 348 



128. Turpentine ------ 348-52 



Action on plants - - - - ------- 348. 



Action on insects ---------- 348-9 



Recipe for grafting wax --------- 349 



Uses - 348-9 



Mouillefert's experiments against phylloxera ------ 349 



Use to drive off moles ---------- 349 



129. Pine and Spruce Resin [? Rosin]. 



Uses - 349 



Use in soap emulsions ----- 34c> 



