Charles T. Luthy

• Luthy's scientific handwriting
• Luthy's Scientific Handwriting, Being An Analysis Of Roman Script Form And Execution
• Scientific handwriting
• The Human Speech Sounds ..
• The human speech sounds, tracing the evolution of the forty-three speech sounds in the human voice through all their series, classes, kinds and forms to the limit of audible distinction
• The Universal Alphabet: The Alphabet Wherein the Factors that Have Evolved in the Process of ..
• The up-to-date English alphabet
• Human Speech Sounds - Tracing the Evolution of the Forty-Three Speech Sounds in the Human Voice Through All Their Series, Classes, Kinds and Forms
• Human Speech Sounds, Tracing the Evolution of the Forty-Three Speech Sounds in the Human Voice Through All Their Series, Classes, Kinds and Forms to the Limit of Audible Distinction; Describing Their Organic Formations; Together with the Positions...
• The coming handwriting for schools
• The correct teaching of handwriting
• The universal alphabet