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acre amount applicable average bark Barrows basin birch board feet BRANCH bridge cent Charles chestnut clear commission complete cost County cubic feet DAILY GAGE HEIGHT December diameter Discharge elevation fire forest forest fire forestry George given grades growth Hampshire inches increase interest Israel January John July July August September June June July August kerf land length less lumber March mean measurements method mill month N. H.—Continued obtained October November PEMIGEWASSET RIVER planting practically present Rainfall reserve RIVER AT PLYMOUTH rotation rule Run-off Second-ft seed Sept shows slopes soil SOUTH southern species spruce square miles stands station T. W. Norcross thick thousand town trees volume White Mountain white pine woods yield
Seite 43 - Minimum" the quantity given is the mean flow for the day when the mean gage height was lowest. The column headed "Mean" is the average flow in cubic feet for each second during the month.
Seite 42 - gives the mean flow for the day when the mean gage height was highest. As the gage height is the mean for the day it does not indicate correctly the stage when the water surface was at crest height and the corresponding discharge was consequently larger than given in the maximum column. Likewise, in the column headed "Minimum" the quantity given is the mean flow...
Seite 43 - ... As the gage height is the mean for the day, there might have been short periods when the water was higher and the corresponding discharge larger than given in this column. Likewise, in the column of "Minimum," the quantity given is the mean flow for the day when the mean gage height was lowest. The column headed "Mean" is the average flow for each second during the month.
Seite 56 - The above ta;ble is applicable only for open-channel conditions. It is based on eight discharge measurements made during 1905 and two during 1904.
Seite 71 - Jan. Feb. Mar. Apr. May Jane July Aug. Sept. Oct. Nov. Dec.
Seite 19 - Berlin, Carroll, Clarksville, Colebrook, Columbia, Dalton, Dummer, Errol, Gorham, Jefferson, Lancaster, Milan, Northumberland, Pittsburg, Augustus F.
Seite 43 - Depth in inches" means the depth of water in inches that would have covered the drainage area, uniformly distributed, if all the water could have accumulated on the surface. This quantity is used for comparing run-off with rain-fall, which quantity is usually given in depth in inches. It should be noticed that "acre-feet and depth in inches" represent the actual quantities of water which are produced during the periods in question while "second-feet" on the contrary, is merely a rate of flow per...
Seite 8 - ... patrol the woods in their respective cities or towns, warning persons who traverse the woods, campers, hunters, fishermen and others, about lighting and extinguishing fires.
Seite 60 - River from the west, until, at Plymouth, about 20 miles below North Woodstock, the elevation is between 400 and 500 feet. The underlying rock in this basin is usually granite, exposed in the mountain summits. The basin contains some of the best spruce standing in New England. Large areas in the basin of East Branch are still in virgin forest ; other areas have been practically stripped, especially on Hancock Brook, a tributary of East Branch, and in the basin of Middle Branch.
Seite 61 - The channel is straight for 1,000 feet above and below the bridge, and is about 180 feet wide at ordinary stages, broken by one pier. The banks are high and rocky. The bed is fairly permanent near the gage, but evidences of change in conditions below and consequent change in control as regards velocity have been observed during 1905.