It is not proposed, herein, to offer an exhaustive criticism of a service that has won approval in every quarter of the globe. On the other hand it is always well enough to cast about and see that the house is in order. Analysis is not ultimately antagonistic to synthesis. Criticism is always helpful: if wholesome it reveals defects for correction; if weak it discloses the strength of the criticised.
Such analysis and criticism as are offered will proceed from a psychological point of view.