INSPIRED by Sir G. Greenhill, to whom he makes due acknowledgment, Prof. Hancock has compiled a very useful monograph, compact, well arranged, and apparently accurate. Chap. i. is on elliptic ...

GOUDAS 1 has criticized the integrals of motion that I have given 2 for the elliptic restricted three body problem. He states: “Contopoulos has given an integral equivalent to the Jacobi integral for ...