32 



ter. It will be seen by referring to this report that the simple mix- 

 ture of lime, aud lime and glue were very soon washed off. 



The condition of the various mixtures applied in April, 1888, the 

 results of which were also reported in this same Buletin have been 

 carefully observed during the summer, the result of which we give 

 below. 



For the benefit of those who may not have the last Bulletin at 

 hand we repeat the series : 



Series No. 1. 



1. Linio wash of the consistency of common paint. 



2. " " 10 parts, 1 part gas tar. 



3. " " " " " " asphaltum. 



4. " " •' " '• "■ Morrill's tree Ink. 



5. " •' and equal parts skimmed milk. 



6. " " " " " * " " , gas tar 1 part. 



7. " " " " " " " , asphaltum 1 part. 



8. " '• '' " " " " Morrill's Tree Ink 1 part. 



Series No. 2. 



1. Portland Cement wash of the consistency of common paint. 



2. " " 10 parts, gas tar 1 part. 



3. '' " '' " asphaltuin 1 part. 



4. " " " " Morrill's Tree Ink 1 part. 



5. " '' and skimmed milk, equal parts. 



6. •' " "• " " " " gas tar 1 part. 



7. " " " " " " " asphaltum 1 part. 



8. " " " " " " " Morrill's Tree Ink 



Series No. 1. 



1. Nearly all washed off. Sept, 22d. 

 2. 



3. " " " 



4. Washed off but little. 



5. " •' " " 



6. " " " 



