Bedford Street, Covent Garden, London, 

 September 1874. 



Mac mill an & Co:s Catalogue of Works 

 in Mathematics and Physical Sclence ; 

 including Pure and A reeled Mathe- 

 matics; Physics, Astronomy, Geology, 

 Chemistry, Zoology, Botany; Physiology, 

 Anatomy, and Medical Works generally ; 

 and of Works in Mental and Moral 

 Pllllosofhy and Allied, Stibjects. 



MATHEMATICS. 



Airy.— Works by Sir G. B. Airy, K.C.B., Astronomer Royal :— 

 ELEMENTARY TREATISE ON PARTIAL DIFFERENTIAL 

 EQUATIONS. Designed for the Use of Students in the Univer- 

 sities. With Diagrams. New Edition. Crown 8vo. cloth. $s. 6d. 

 Lt is hoped that the methods of solution here explained, and the in- 

 stances exhibited, will be found sufficient for application to nearly 

 all the important problems of Physical Science, which require Jot 

 their complete investigation the old of Partial Differential Equa- 

 tions. 

 ON THE ALGEBRAICAL AND NUMERICAL THEORY OF 

 ERRORS OF OBSERVATIONS AND THE COMBINA- 

 TION OF OBSERVATIONS. Crown 8vo. cloth. 6s. 6d. 

 In order to spare astronomers and observers in natural philosophy the 

 confusion and loss of time which are produced by referring to the 

 ordinary treatises embracing both branches of probabilities (the first 

 relating to chances which can be altered only by the changes of entire 

 units or integral multiples of units in the fundamental conditions 

 of the problem ; the other concerning those chances which have 

 respect to insensible gradations in the value of the element measured), 

 this volume has been drawn up. Lt relates only to errors of observa- 

 tion, and to the rides, derivable from the consideration of these 

 errors, for the combination of the results of observations. 

 UNDULATORY THEORY OF OPTICS. Designed for the Use of 

 Students in the University. New Edition. Crown 8vo. cl. 6s. 6d. 

 The plan of this tract has been to include those phenomena only 

 which admit of calculation, and the investigations are applied only 

 to phenomena which actually have been observed. 

 ON SOUND AND ATMOSPHERIC VIBRATIONS. With 

 the Mathematical Elements of Music. Designed for the Use of 

 Students of the University. Second Edition, revised and enlarged. 

 Crown 8vo. gs. 



A 



