The term New Thought was first used as the name of a little periodical issued in Melrose, Mass in 1894, and later by repre sentatives of the rational wing of the mental healing movement in general in place of the term formerly employed, Mental Science. The theory was essentially a new thought for most Of its devotees, a new attitude towards life, hence the term was in a sense appropriate. It is not an easy term to define, nowadays, in view of the many variations of therapeutic belief. But let us endeavor to discover the underlying principles which have most widely appealed to its devotees, making as. Little as possible of the variations.