148 THE CONNECTICUT POMOLOGICAL SOCIETY. 



to apply and at least as effective as the very best remedies 

 heretofore used. From the results already obtained in the 

 experimental tests, the K-L mixtures can be pronounced most 

 promisin^^ in all of these respects. 



What Kerosene-Li moid is and the Use of Each Ingre- 

 dient. 



K-L is a mixture of kerosene, hydrated lime and water. 

 Limoid is the particular form of lime which was used in de- 

 veloping the mixtures and from which they were first named, 

 but now that other forms of lime are also being used, it will 

 doubtless be best to speak of them as kerosene-lime mixtures, 

 or simply K-L. The name K-L was adopted because K and 

 L are the initials of kerosene and limoid and a short name 

 was desired both for writing and speaking. 



The limoid is hydrated or dry slaked magnesian stone 

 lime. To prepare it the stone lime is ground, then dry slaked 

 and sifted. It is quite probable that any good grade of stone 

 lime can be dry slaked into an exceedingly fine and dry pow- 

 der to replace limoid. The speaker has done this and has 

 made with it a K-L which appeared to be the equivalent of 

 K-L made with limoid. A poor grade of lime would not be 

 satisfactory, although by carefully dry-slaking and sifting it, 

 a portion might be used. At first it was thought that a large 

 proportion of magnesia was necessary in the lime — limoid is 

 one-third magnesia — for making K-L, but recent tests indi- 

 cate that good lime with less than 5 per cent, of magnesia 

 apparently makes equally good K-L. To simplify matters, 

 air slaked or fallen lime was tried, and it too proved to be 

 very satisfactory in making K-L. 



There seems to be a difference between limoid and dry 

 slaked or air slaked lime in the power of holding kerosene. 

 When the last two forms of lime are used the mixture must 

 be agitated violently five minutes to emulsify it : when limoid 

 is used the agitation need continue only three minutes. When 

 once thoroughly emulsified the kerosene is not likely to sepa- 

 rate from any of these forms of lime. 



An excellent method of dry slaking lime was suggested 

 recently by Prof. M. B. Waite of the Department of Agricul- 

 ture, at Washington. The stone lime is broken into small 



