CONTENTS. XY A ET. PAG B 96. Instances of musical melodies ; “ God save the Queen,” and “ Adeste Fideles.”....................................... 221 97- On Enriched Music, and Singing in Parts................. 225 98. O11 the necessity for the supplementary notes called “fiats” and “sharps.”........................................ 228 ON INSTRUMENTAL MUSIC, AND THE ADAPTATIONS OP MUSIC REQUIRED BY SPECIAL INSTRUMENTS. Articles 99—101. Pages 232—244. 99. On the characteristic differences of construction be¬ tween the Organ, the Piano-forte, and the Violin..... 232 100. On the necessity for Temperament, in reference to chords and harmonies within the compass of an Octave............................................................ 237 101. On the necessity for Temperament, in reference to long series of harmonics, and to the combination of different instruments.......................................... 242 ON THE HUMAN ORGANS OP SPEECH AND HEARING. Articles 102—106. Pages 245—258. 102. On the human organs for producing musical notes, and on whistling..................................................... 245 103. Experiments and theory on the production and main¬ tenance of vibrations similar to those of the human organs of sound................................................. 248