46 SMITH'S CHRYSANTHEMUM MANUAL, 



acid then stir well with a wooden paddle never use any metallic dishes as 

 the acid soon destroys them. 



An ordinary tea cup with a handle is very serviceable in tilling the 

 small jars and, as previously stated, 3 ounces to the jar is sufficient to 

 ferment and decompose the Cyanegg. 



When the jars have received sufficient amount of acid solution place 

 them on the walks at as nearly equal intervals as possible so that the gas 

 will reach all parts of the house. The ventilators and other outside open- 

 ings are closed, so all is in readiness. Place the required number of 

 Cyanegg in a paste-board or wooden box (cigar box if handy), and, be- 

 ginning at the end of the house fartherest from the door or exit, drop the 

 Cyanegg into the jar passing rapidly to the next and so continue until 

 all are accounted for and out of the house locking the door. 



In large houses or ranges where there is a considerable space to be 

 gassed it often requires the services of two or even more to drop the 

 Cyanegg. The course to be traversed must be considered before hand so 

 that each person can reach free air and safety at about the same time and 

 thus avoid the gas fumes. 



Those who have not used the deadly poison should be very careful both 

 in handling it and after it has come in contact with the acid. The gas is 

 jis transparent and colorless as the air, but when inhaled it is death to all 

 animal life. Never undertake to investigate its action or re-eater the 

 house for three hours after its installation. Also see that the houses are 

 locked to protect persons who are unaware of the danger. 



Red Spiders The most difficult insect we have to contend with under 

 glass is the red spider, which is very minute, scarcely discernable by the 

 naked eye, but if allowed to go unchecked will become very numerous, form- 

 ing a fine web about the leaves and buds. It is generally first detected 

 on the underside of the leaves where they are not dislodged by spraying. 

 Dry, hot air is most congenial to their welfare and after these conditions 

 have been brought about by turning on heat, houses have been ruined 

 which were apparently clean and gave great promise early in the season. 



The best remedy known is water, which should be applied in the form 

 of a spray with as much force as possible to destroy the web and dislodge- 

 them. It is important that it be applied to the under as well as the upper 

 side of the foliage. Thorough and repeated applications are the only 

 source of relief. 



Tlirips These, like the foregoing, are very small, the adults being 

 scarcely a 1-10 of an inch in length, of a grayish white and very slender 

 or hair like, in fact they look very much like clippings of white or gray 

 hair. Their presence is first indicated by slightly brown discoloration 

 between the midribs on the under side of leaves and when allowed to go 

 unchecked the whole undersurface will have a decided brown cast, event- 

 ually extending to all parts of the plant including the buds and blooms. 

 Spraying with considerable force will dislodge them to some extent. 



The best remedy we know of is Tobacco fumigation where the plants 

 are grown under glass or wherever the fumes cnn be confined and is used 



