194 



BOARD OF AGRICULTURE. 

 Black Birch-Root — No. 1. 



Black Birch-Root— No. 2. 



May 2, 



3, 



4, 



5, 



6, 



7, 



8, 



9, 



10, 



11, 



12, 



13, 



14, 



15, 



16, 



17, 



18, 



19, 



20, 



21, 



22, 



23, 



24, 



25, 



26, 



27, 



■ 28, 



29, 



30, 



31, 



June 1 , 



2, 



3, 



4, 



6, 



P. M. 

 A. M. 

 P. M. 



7.80 A. M 

 12 

 12 

 12 

 12 



8.30 

 12 

 10 



6.30 

 12 

 12 

 12 

 12 

 12 

 12 

 12 



9.80 



9.80 



6.30 



6.30 



6.80 



1.30 

 12 



6.30 



6.80 



7.80 

 12 



7.30 



7. .30 



7.30 



1 



7 



6.80 



7 



12 A. M. 



9.7 



18.8 



20. 



29.8 



39. 



40.7 



43.6 



41. 



40.5 



37.7 



32.2 



27.1 



23.2 



19.7 



16.6 



14.2 



12. 



10.7 



8.5 



7.5 



9. 



8.5 



5.9 



5. 



3.8 



3.6 



3.6 



0.2 



0.9 



0.6 



0.8 



- 2.7 



- 1. 

 1.2 

 2.5 



13.8 



20. 



29.8 



89. 



44.2 



43.6 



44.4 



41.4 



41.0 



40.4 



87.7 



32.2 



27.1 



23.2 



19.7 



16.6 



14.2 



14. 



14. 



10.8 



146 



10 2 



9.2 



5.8 



7.3 



5.2 



6. 



8.6 



3. 



1.8 



2. 



1.7 



3.2 



2. 



4.7 



M. 



12 P. M 



12 

 12 



12 



6.30 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 



7.30 



7.30 



7.30 



7.30 



7.30 

 12 

 12 P. M 



7.30 A. M, 



7.30 " 



7.30 " 

 12 



P. M. 

 A.,M. 



Note. — A comparison of the recorded pressures of the sevei'al gauges 

 as given in the foregoing tables, with the temperature, cloudiness, wind, 

 barometric pressure and humidity, will enable a person to determine the 

 relations existing between the spring flow of sap and the weather. 



It will be noticed that the maple is apparently affected the most by the 



