156 GIBBS. 



The data are tabulated as f oIIoavs : 



Table XVIII. — Yield of sap obtained from 100 coconut trees for a period of 

 thirty -three days, from April 13 to May 15, 1910. 



Date. 



Night yield. 



Finish- 

 ed work. 



Hours 

 run. 



Liters 

 of tuba. 



Day yield. 



Finish- 

 ed work. 



Hours 

 run. 



Liters 

 of tuba. 



Total 

 liters. 



Rain. 



April 13 



April 14 



April 15 



April 16 



April 17 



April 18 



April 19 



April 20 



April 21 



April 22 



April 23 



April 24 



April 25 



April 26 



April 27 



April 28 



April 29 



April 30 



May 1 



May 2 



Mays __— 



May 4 



May 5 



May 6 



May 7 



Mays 



May 9 



May 10 



May 11 



May 12 



May 13 



May 14 



May 15 



Total, 33 

 days __. 



a. m. 

 7.23 

 7.41 

 8.15 

 8.17 

 8.00 

 8.03 

 7.55 

 8.50 

 8.00 

 8.53 

 8.05 

 8.21 

 8.38 

 8.50 

 8.13 

 8.03 

 7.53 

 7.30 

 7.42 

 8.02 

 7.11 

 7.22 

 8.49 

 8.04 

 8.12 

 9.02 

 8.07 

 7.50 

 8.01 

 8.20 

 8.11 

 8.15 

 8.32 



14.01 

 14.10 

 14.08 

 13.12 

 13.03 

 13.25 

 14.50 

 13.59 

 14.48 

 14; 03 



14.07 

 13.28 

 13.14 

 13.22 

 12. 30 

 12.49 

 13.02 

 13.50 

 12.43 

 13.46 

 13.14 

 13.43 

 14.01 

 13.18 

 12.57 

 12.59 

 13.41 

 13.59 

 13.13 

 13.22 



133 



67 



96 



98 



70 



90 



77 



97 



68 

 110 



81 

 105 

 162 



72 



67 



62 



53 



70 



73 



75 



65 



95 



88.5 



76 

 103.5 



85 



79.5 



98 



75.5 



92.5 



81 



87.5 



90 



p. m. 

 5.40 

 6.05 

 6.09 

 6.48 

 7.00 

 6.30 

 6.00 

 6.01 

 6.05 

 6.02 

 6.03 

 7.03 

 6.43 

 6.45 

 6.49 

 6.31 

 6.50 

 6.53 

 7.00 

 7.21 

 6.89 

 7.03 

 6.50 

 6.29 

 7.01 

 6.51 

 6.53 

 7.02 

 6.39 

 6.12 

 7.02 

 7.10 

 8.23 



2,843 



10.17 

 10.24 



9.54 

 10.31 

 11.00 

 10.27 

 10.05 

 lO: 11 

 10.05 



9.09 

 10.25 



9.55 

 10.36 

 10.28 

 10.57 

 11.20 

 11.18 

 11.19 

 11.28 

 11.41 

 11.01 

 10.25 

 10.49 



9.49 

 10.45 

 11.12 

 10.38 



9.52 

 10.51 

 10.55 

 11.51 



51 



50 

 51.5 

 43 

 61 

 42 

 52 

 59 

 46 

 45 

 100 

 93 

 53 

 51.5 

 52 

 50 

 75 

 50 

 49 

 47.5 

 48 

 60 

 59.5 

 60 

 45 

 60 

 49.5 

 47 

 75 

 72 



79.5 

 69.5 



179 

 118 

 146 

 149. 

 113 

 151 

 119 

 149 

 127 

 156 

 126 

 205 

 255 

 125 

 118. 

 114 

 103 

 145 

 123 

 124 

 112. 

 143 

 148. 

 135. 

 163. 

 130 

 139. 

 147. 

 122. 

 167. 

 153 

 167 

 159. 



3 to 3.15 p. m. 



3.05 to 3.10 p. m. 



2.35 to 10 a. m. 

 8 a. m. 24th to 

 i8.22 p. m. 25th. 



2.10to5.15-p. m. 



8.20 to 8.-50 a. m. 



1,892.5 



4,735.5 



If the two rainy days, April 24 and 25, which are above the average 

 for tuba production, are omitted, the flow for the thirty-one days is 

 found to be as follows: 



