March, 1907.] KNOWLEDGE & SCIENTIFIC NEWS. iii. 



MOW RELADY, 



THE SCIENCE YEAR BOOK 



DIARY, DIRECTORY, BIOGRAPHY, & SCIENTIFIC SUMMARY 

 FOR t 90 V . 



<X5X CONTENTS. K5X> 



FRONTISPIECE.- Portrait of Lord Rayleigh. 



ASTRONOMY. — The Calendar, Monthly Ephemeris, Tables for Latitude, Longitude, &c, 

 Notes and Tables of Solar System, Paths of the Planets (with Charts), the 

 Moon, Eclipses, Comets, Jupiter's Satellites, the Stars, Maps of the Heavens, &c. 



THE EARTH AND ITS INHABITANTS.— Notes and Charts on Geology, Magnetism, 

 Meteorology (Average Temperature, Rainfall, &c), Geographical Exploration, Natural 

 History, Populations, Statistics, &c. 



PHYSICAL AND CHEMICAL NOTES.-Air and Water, Light, Sound, Heat, Specific 

 Gravities, Spectra, Chemical Elements, &c. 



METROLOGY. — Time, Trigonometrical Tables, Weights and Measures, Electrical Measure- 

 ments, Money, &c. 



PROGRESS OF SCIENCE IN 1906. 



DIRECTORY. — Scientific Periodicals, Public Institutions, Universities and Staffs, Scientific and 

 Learned Societies, Prizes and Awards, &c. 



BIOGRAPHIES of over 500 of the Principal Workers in Science. 



GLOSSARY of recently-introduced Scientific Terms. 



DIARY.— One Page to each Day, Times of Sunrise and Sunset, High Water, Moon, 



Meteorological Averages, Astronomical Events, &c. 

 Engagement Diary and Calendar. Letters received and despatched, Memoranda, Cash Accounts, 

 INDEX Postal Information, &c, &c. 



Nearly 600 Pages, Large Octavo, handsomely bound in Cloth, Gold Lettering, with 



Changeable Monthly Calendar in Cover, 



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SOME EXTRACTS FROM OPINIONS OF THE PRESS 



ON THE 1906 ISSUE. 



" Every care appears to have been taken to make the volume serviceable to men of science and others 

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" A very excellent and thoroughly up-to-date annual." — English Mechanic. 



" The additions and improvements made in the current issue of this well-known scientific diary make 

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" The whole is admirably arranged, and the book should have the widest circulation, for it appeals to 

 the ordinary man as well as the student." — Athcnu-um. 



" One book of reference that is really readable is the ' Science Year Book.' " — Daily Graphic. 



" It contains an enormous amount of information in the way of statistics, and is altogether very 

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