34 MACMILLAN'S EDUCATIONAL CATALOGUE. 



SCIENCE. 



(i) Natural Philosophy, (2) Astronomy, (3) 

 Chemistry, (4) Biology, (5) Medicine, (6) Anthro- 

 pology, (7) Physical Geography and Geology, (8) 

 Agriculture, (9) Political Economy, (10) Mental 

 and Moral Philosophy. 



NATURAL PHILOSOPHY. 



Airy. Works by Sir G. B. AIRY, K.C.B., formerly Astronomer- 

 Royal : 



UNDULATORY THEORY OF OPTICS. Designed for the Use 



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



ON SOUND AND ATMOSPHERIC VIBRATIONS. With 



the Mathematical Elements of Music. Designed for the Use of 



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



Crown 8vo. 9-r. 



A TREATISE ON MAGNETISM. Designed for the Use of 



Students in the University. Crown 8vo. Qr. 6d. 

 GRAVITATION: an Elementary Explanation of the Principal 

 Perturbations in the Solar System. New Edition. Crown 8vo. 



[Just ready. 



Airy (Osmond). A TREATISE ON GEOMETRICAL 

 OPTICS. Adapted for the Use of the Higher Classes in Schools. 

 By OSMUND AIRY, B.A., one of the Mathematical Masters in 

 Wellington College. Extra fcap. 8vo. 3-r. 6d. 



Alexander (T.). ELEMENTARY APPLIED MECHANICS. 



Being the simpler and more practical Cases of Stress and Strain 

 wrought out individually from first principles by means of Ele- 

 mentary Mathematics. By T. ALEXANDER, C.E., Professor of 

 Civil Engineering in the Imperial College of Engineering, Tokei, 

 Japan. Crown 8vo. Part I. 4-r. 6d. 



Alexander Thomson. ELEMENTARY APPLIED 



MECHANICS. By THOMAS ALEXANDER, C.E., Professor of 

 Engineering in the Imperial College of Engineering, Tokei, Japan ; 

 and ARTHUR WATSON THOMSON, C.E., B.Sc., Professor of 

 Engineering at the Royal College, Cirencester, Part II. TRANS- 

 '/ERSE STRESS ; upwards of 150 Diagrams, and 200 Examples 

 carefully worked out ; new and complete method for ffncling, at 

 every point of a beam, the amount of the greatest bending 

 moment and shearing force during the transit of any set of loads 

 fixed relatively to one another e.g. , the wheels of a locomotive ; 

 continuous beams, &c., &c. Crown Svo. los. 6a. 



