510 IOWA DEPARTMENT OF AGEICULTURE. 



4. Nevada lime-andnsiilphur dip: 



Flowers of sulphur pounds 16 2-3 



Lime pounds 33 1-3 



Water gallons 100 



5. Port Collins lime-and-sulphur dip: 



Flowers of sulphur pounds 33 



Unslaked lime pounds 11 



Water gallons 100 



6. A mixture used extensively under the direction of this bureau contains the 

 same proportions of lime and sulphur (namely 1 to 3) as the Fort Collins dip, but 

 the quantities are reduced to— 



Flowers of sulphur ^ pounds 24 



Unslaked lime poiinds S 



Water gallons 100 



In case of fresh scab formula No. 6 will act as efBcaciously as the 

 dips with a greater amount of lime, but in cases of very hard scab a 

 stronger dip, as the Fort Collins dip, should be preferred, or, in unusually 

 severe cases, an ooze with more lime in proportion to the amount of sul- 

 phur, such as the Victorian (No. 1), the South African (No. 3) or the 

 Nevada (No. 4) dip might be used. 



Dangerous formulas — Among the dangerous formulas for lime and sul- 

 phur dips are the following: 



a. California lime-and-sulphur dip: 



Flowers of sulphur pounds 100 



Lime pounds 25 



Water gallons 100 



A very dangerous misprinted formula is found in several books and 

 journals, probably due to a typographical error, which specifies a much 

 larger proportion of lime than any of those mentioned above. Thirty- 

 three pounds of lime to 100 gallons of water is the largest proportion ad- 

 missible under any circumstances, and 16 2-3 pounds is as much as should 

 be used without expert advice and supervision. 



Many other formulas might be cited, but these are enough to show the 

 great variations in the dips which have been used, and to prove that when 

 a party simply states that "lime and sulphur" is an excellent dip, or that 

 It is a dangerous dip, or that he has succeeded or failed with it, or 

 that the lime and sulphur dip is injurious to the wool, his statements can 

 not be taken as definite unless he also states which lime and sulphur dip 

 he used and how he used it. 



Prejudice against lime and sulphur dip — In the first place it is fre- 

 quently asserted that lime and sulphur does not cure scab. Experience 

 in Australia and South Africa, as well as in this country, has shown be- 

 yond any doubt that a lime and sulphur dip, when properly proportioned, 

 properly prepared and properly used, is one of the best scab eradicators 

 known. Cases of its failure have been due to careless or improper methods 

 of its preparation and use. 



It is also claimed by some that it produces "blood poisoning." The 

 cases of death following the use of lime and sulphur dips have been in- 

 finitesimally few, considering the number of sheep dipped in these solu- 

 tions, when compared with the deaths which have been known to follow 

 the use of certain proprietary dips. The details of such accidents, so far 



