Mr. Emil Behnke has already made himself known to the leading members of the musical and medical professions by his learned lectures on "The Theory of Voice Production," and has gained the esteem of those interested in the subject by the masterly manner in which he deals with the matter, as well as his unaffected and, as far as possible, untechnical treatment of it. Mr. Behnke has done much to popularize the study of the human voice, and his book (which abounds in admirable plates) deserves to be widely known. EDUCATIONAL TIMES. It is but rarely that science figures as the handmaid of art, yet this book is a signal instance of it, for it is one of the first attempts, if not the very first, at an investigation, on strictly scientific principles, of the normal and the abnormal development of the voice, both in speaking and singing. Herr Behnke, who is both a musician and a physiologist, has brought to bear upon this subject his knowledge as a musician, and the results of several years of patient and careful scientific experiments. We cannot too highly commend this little work to the attention of all those interested in so important a subject. BIRMINGHAM DAILY GAZETTE. Since Herr Behnke's removal from Birmingham to London he has become an accepted authority on the subject of voice production, and we are glad to see the results of his studies presented in the useful way in which they are in this little volume. Earnest and conscientious students of the vocal art need not be reminded that the production of fine tone is not the all-in-all of the excellences of singing, but they will certainly know better how to employ their gifts after mastering the secrets Herr Behnke reveals. Opinions of Mrs. Emil Behnke's Pupils. VOICE TRAINING. FROM AN OLD PUPIL. GRESHAM HOTEL, DUBLIN. DEAR MRS. BEHNKE,--It is indeed regrettable that Mr. Behnke was not spared to reap to a greater extent the reward of his wonderful work. You, I know, must have acquired an adequate knowledge of his magnificent system of teaching to enable you to continue on the same course, and so perpetuate his memory. This is a source of comfort to your many friends. FROM A LADY LECTURER. EDGBASTON, _May 11th, 1893_. MY DEAR MRS. BEHNKE,--I feel I must write to tell you how much better I am, and how greatly indebted I am to your treatment.... I can take two or three meetings a week with ease, thanks to your training, and the deeper and fuller tone of my voice has been remarked upon by many. LARNE, IRELAND. I have no hesitation in saying that, under God, you were the means of curing my voice. FROM A CLERGYMAN WHO HAD BROKEN DOWN IN VOICE. LONDON, _July, 1893_. My voice gives me no trouble now; it is indeed very much fuller and more resonant. I can fill my church without the least effort. FROM A CLERGYMAN WHO HAD SUFFERED FROM "CLERGYMAN'S SORE THROAT." BRIGHTON, _26th June, 1893_.