ie 
3 
| | hag 
142 REPORT OF THE COMMISSIONER OF AGRICULTURE. 
before removing the latter from the tree. Tree 10 feet tall. Leaves uninjured; 
only a few Iceryz were killed. r 
(130) Put 1 pound of the best grade of fused potassium cyanide on top of the red- 
hot charcoal in the furnace and allowed the vapors to pass into the tent. After the 
lapse of ten minutes the air in the tent was stirred for ten minutes. Left tent on 
tree half an hour; disconnected furnace from tent five minutes before removing 
the latter from the tree. Tree 10 feet tall. Neither leaves nor the Iceryze were 
injured. 
INDEX TO EXPERIMENTS. 
Following is an alphabetical list of the substances and combinations used in the 
preceding experiments; the numbers are those of the different experiments. IT 
have prefixed an asterisk (*) to those which proved fatal to at least one-sixth of the 
Icerye: 
Arsenic, waiter, and quicklime, 36. Cyanide of potassium, marble dust, water, and 
Arsenic, caustic soda and water, *15, 16, 24. sulphuric acid, * 104. 
Arsenic, bicarbonate of'soda,and sulphuric acid, 99. | Mercury and nitric acid, *17, *18, 21, 22, 40, 44, 
Arsenic and nitric acid, 34. *49, *51, 
Arsenic, muriatic acid, and quicklime, *60, *66, 97. | Mercury, nitric acid, water, and quicklime, 58, 64. 
Arsenic, muriatic acid, mercury, and quicklime, | Mercury, muriatic acid, arsenic, and quicklime, 
*61, * 65. *61, #65. 
Arsenic, muriatie acid, zinc, and quicklime, * 55. Mereury, muriatic and nitric acid, arsenic, and 
Arsenic, muriatic acid, zine, 42, *47. quicklime, * 57. 
Arsenic, muriatic and nitric acid, mercury, and | Mercuric chloride and nitric acid, * 29. 
quicklime, * 57. Mereuric chloride, nitric acid, and quicklime, 31. 
Arsenic, muriatic and nitric acid, zinc,and quick- | Mercurous ointment and nitrie acid, 32. 
lime, *56. Methy! alcohol and bleaching powder, *67. 
Arsenic, muriatic and nitrie acid, and copper, “48. Methyl aicohol and nitric acid, 69. 
Arsenic, muriatic and nitric acid, and zinc, *43, 45. | Naphthaline and nitric acid, 27. 
Benzine, water, and quicklime, 91. Naphthaline, aleohol, and nitric acid, * 62. 
Benzine and muriatic acid, 39. Naphthaline, alcohol, water, and quicklime, 59. 
Bicarbonate of soda, water, and sulphuricacid,1M1. | Paris green and nitric acid, 10. 
Bicarbonate of soda,arsenic,and sulphuric acid,99. Phosphorus, bromine, and water, *52, *54. 
Bisulphide of carbon, water, and quicklime, 75. Residues and quicklime, * 28, * 30, 33, *35, 88, * 41, 
Bisulphide of carbon and nitric acid, 76. : | #46, *50, * 58, 63, 68, 70, 74, *77, *79, *81, * 83, 85, 
Bisulphide of carbon and muriatic acid, *78, *50. #87, 80, 
Bleaching powder and methyl alcohol, *67. | Sal ammoniac and quicklime, 25, 26. 
Brass and nitric acid, 6, *7, *8, *9, *11, *12, *13. | Strychnine, water, and quicklime, 39: 
Brass, water, and nitric acid, 1, 2, 3, 4, 5. | Strychnine and nitric acid, 37. 
Bromine, water, and phosphorus, *52, *54. Sulphur and charcoal, * 110, * 114, * 112, * 113, * 114, 
Carbonate of ammonium and charcoal, 124. 115, 116, 117, 118, 119, 120, 121, * 122, 123, 198, 126, 
Chloroform, water, and quicklime, 88. *127, 129. ; 
Chloroform and muriatie acid, 86. Tin and nitric acid, * 19, 20. 
Copper and nitric acid, *23. Tobacco stems, vaporized, * 128. 
Copper,muriatio and nitric acid, and arsenic, *48. | Tobacco (oil of), water, and quicklime, 72. 
Cyanide of potassium, vaporized, 130. | Tobacco (oil of), water, and nitric acid, 73. 
Cyanide of potassium and water, 84. Tobaceo (oil of), muriatie acid, and quicklime, 71. 
Cyanide of potassium and muriatic acid, * 82. Zine and nitric acid, * 14. 
Cyanide of potassium and sulphuric acid, *92, “94, | Zine, arsenic, and nitric acid, 42, * 47. 
* 105, * 106, * 107, * 108. Zine, arsenic, muriatic acid, and quicklime *55. 
Cyanide of potassium, bicarbonate of soda, water, | Zinc, arsenic, muriatic and nitric acid, * 43, 45. 
and sulphuric acid, * 93, * 95 *96, *98, *100, #102, | Zinc, arsenic, muriatic and nitric acid, and quick- 
* 103, *109, lime, * 56, 7 
