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WOOD PIPE FOR CONVEYING IRRIGATION WATER. Pe 
head ditches or flumes, tapping it and inserting small hydrants 
at the head of each tree row or at closer intervals. 
These hydrants usually consist of three-fourths-inch galvanized- 
iron pipe which is screwed into the shell of the wood pipe, and 
equipped with a cheap valve for regulating the discharge. The cost 
of such outlets, including the threaded nipples 18 inches long and 
the valves, is about 40 cents each. 
The conditions of irrigation service are in perhaps a majority 
of cases unfavorable to a long life of this kind of pipe, and where 
the pipe is empty for several months out of the year decay is often 
very rapid, but except for this disadvantage no substitute has been 
found which meets so many of the other requirements of irrigation 
service. 
COST OF MACHINE-BANDED WOOD PIPE. 
The cost of machine-banded wood pipe varies with the head for 
which it is made, fluctuations in the market prices of materials, the 
kind of wood used, etc.,and will differ also in accordance with freight 
or transportation charges from the factories to different points. 
The following prices f. o. b. cars at Seattle, Wash., quoted for 
estimating purposes only, will give some idea of the present prices 
of fir pipe, and from the weights given the freight charges to any 
point may be ascertained by consulting railway rates. A minimum 
carload is 30,000 pounds. 
Table showing prices and weights per linear foot of machine-banded wood pipe, 
f. o. b. cars, Seattle, Wash. 

Diameter. |Head.| Price. | Weight. || Diameter. |Head., Price. | Weight. || Diameter. |Head.| Price. | Weight. 


Pounds Pounds. Pounds. 
2-inch..... oe $0.087 3.1 || 10-inch... 50 |$0. 268 13.1 || 18-inch... 50 |$0.597 26.9 
. 090 3.2 100 347 1 Bre 100 . 750 30.8 
150 . 092 3.2 150 . 392 a 7/ 150 . 884 34.6 
200 . 100 3.4 200 . 455 lian} 200 . 992 38.0 
250 105 3.5 250 .479 18. 4 250 | 1.266 45.6 
300 116 3.6 300 . 503 19.4 300 | 1.528 54.8 
4-inch..... 50 129 5.8 || 12-inch... 50 .322 16.8 || 20-inch... 50 . 655 29.6 
100 131 5.9 100 413 18.9 100 828 34.4 
150 134 6.0 150 450 19.8 150 | 1.033 40.0 
200 166 6.3 200 532 PAA) 200 | 1.192 44.0 
250 176 7.0 250 618 23.8 250 | 1.428 52.0 
300 189 73a} 300 . 660 2553 300 | 1.615 Dao 
6-inch..... 50 163 8.3 || 14-inch... 50 ~ 445 21.3 || 22-inch... 50 like 33.9 
100 168 8.9 100 550 23.0 100 990 40.1 
150 184 9.1 150 629 25.3 150 | 1.184 45.2 
200 226 9.6 200 745 28. 2 200 | 1.415 52.7 
250 242 10.0 250 834 29.9 250 | 1.710 59.8 
300 258 10.4 300 . 916 32.3 300 | 1.845 65.5 
8-inch..... 50 203 10.3 || 16-inch... 50 .547 24.7 || 24-inch... 50 . 855 37.3 
100 224 10.5 100 639 26.9 100 | 1.075 44.0 
150 292 12.8 150 734 29.3 150 | 1.334 51.0 
200 332 Bh / 200 871 33.4 200 | 1.627 59.3 
250 366 15.6 250 987 36.2 250 | 1.934 67.8 
| 300 387 16.2 300 | 1.132 | 40.2 300 | 2.100 74.3 

} 
The cost of wood pipe is in most places materially less than that of 
cast iron or steel, though direct comparisons are difficult to make. 
At the time the waterworks were built at Astoria in 1895, Mr. Adams 

