Viii Journal of Agricultural Research voi.ix 
Page 
Fig. 9. Elevation and sections of broad-edged orifice with wood gate guides 
moved out 6 inches. 103 
10. Elevation and sections of broad-edged orifice with wood gate slide and 
guides. 103 
11. Elevation and sections of standard orifice with iron gate guides and 
backing. 104 
12. Plots of exponent values of equations in Table II. 104 
13. Plots of constants of equations given in figure 12. 104 
The Venturi Flume 
Fig. 1. Standard plans for the Venturi flume with rectangular cross section_ 118 
2. Discharge curves for the rectangular Venturi flume with i-foot throat... 118 
3. Discharge curves for the rectangular Venturi flume with 1.5-foot throat.. 118 
4. Discharge curves for the rectangular Venturi flume with 2-foot throat.. 118 
5. Discharge curves for the V-notch Venturi flume with side slopes of % to 1 118 
6. Standard plans for the Venturi flume with trapezoidal cross section.... 120 
7. Plan, elevation, and sections of the V-notch Venturi flume. 121 
8. Sketch of the Venturi flume, showing installation in ditch. 121 
9. Plot of values of coefficient C for V-notch Venturi flume. 123 
10. Plot of constants for curves shown in figure 9. 124' 
11. Plan for the trapezoidal Venturi flume with 0.5 foot bottom width, sides 
slopes 1 to 1. 127 
12. Discharge curves for the trapezoidal Venturi flume having 0.5-foot 
bottom width and slide slopes itoi . 128 
Fixation op Ammonia in Soils 
Fig. 1. Diagram showing the percentage of ammonia recovered from soils with 
increasing amounts of ammonium sulphate were added. 142 
Effects of Muscular Exercise and the Heat of the Sun on the 
Blood and Body Temperature of Normal Pigs 
Fig. 1. Graphs showing the detail of leucocytic changes in the blood of one pig 
following muscular exercise. 172 
2. Graphs showing the detail of leucocytic changes in the blood of one pig 
following sun exposure. 175 
Relation of the Transformation and Distribution of Soil Nitrogen 
to the Nutrition of Citrus Plants 
Fig. 1. Diagram of Citrus Experiment Station grove, Riverside, Cal., showing 
the arrangement of the plots and the kind and quantity of fertilizers 
applied. 185 
2. Diagram showing the location of soil-sample borings made in studying 
the lateral movement of nitrates in furrow-irrigated soils. 215 
3. Diagram showing the distribution of nitrates in plot A before and 
after irrigations. 216 
4. Diagram showing the distribution of nitrates in plots E and B before 
and after irrigations. 218 
5. Diagram showing the distribution of nitrates in plot C before and after 
irrigations. 219 
6. Diagram showing the distribution of nitrates in plot F before and 
after irrigations. 220 
7. Diagram showing the distribution of nitrates in plot G before and after 
irrigations. 221 
