William H. Echols

1859 – 1934

• An elementary text-book on the differential and integral calculus
• An investigation of the value of an infinite series on the boundary of the region of convergence
• On the flow of water in pipes, conduits and open channels and the losses of energy due to its motion
• On the maximum and minimum values of a linear function of the radial co-ordinates of a point with respect to simplicissimum in space of n dimensions
• On The root of a monogenic function inside a closed contour along which the modulus is constant
• The evolutionary construction of the imaginary power of a number
• The flow of water in artificial channels