_August 9th, 1865._ I was very pleased indeed this morning to hear you explain your invention of ‘Gymnastics for the Fingers.’ It is extremely clever, and I consider it will be of the greatest service to all performers on wind instruments, as well as to pianists and performers on stringed instruments. I conceive it will give great facility and lessen the labour.” * * * * * _From_ ALFRED NICHOLSON, _Oboist, Royal Italian Opera_. _July 24th, 1865._ “The system of gymnastics for the hand, invented by Mr Edwin Jackson, is, in my opinion, calculated to be of great service to musical professors and students, from the increased strength and flexibility the fingers must gain by practice under this method.” * * * * * _From_ H. C. DEACON, _Pianist_. _July 28th, 1865._ “I think your system of hand-exercise, as explained to me the other morning, likely to be a useful adjunct to the pianoforte, inasmuch as it tends to give increased extensions to an important part of the hand.” * * * * * _From_ JAMES HOWELL, _Contrebassist, Royal Italian Opera_. _August 25th, 1865._ “It is with great pleasure that I testify to the soundness and excellence of your system of gymnastics for the hand, as giving flexibility and power to the fingers. It would prove of great advantage to any member of the musical profession, if properly carried out.” * * * * * _The whole of the Orchestra of the Royal Opera-house at Stuttgart in Wurtemberg, testified individually as follows_: “That Mr Jackson’s discoveries and his gymnastics for the fingers and wrist must certainly conduce to a quick and sure attainment of a solid and a lasting execution upon the pianoforte, as also upon stringed and wind instruments, that they are new and eminently practical, and deserve to be everywhere adopted.” * * * * * _From_ EDWARD J. HOPKINS, _Organist to the Hon. Societies of the Inner and Middle Temple_. _Sept. 13th, 1865._ Mr Jackson has been so good as to explain to me —and to exhibit, his apparatus and course of exercises for developing and strengthening the muscles and powers of the hand, which I firmly believe are calculated to be of very considerable importance to all practitioners upon musical instruments.”