Bibliographical Notices. 425 



in full, and a sj'stematic abbreviation of the periodicals and a uniform 

 plan of printing are carefully attended to throughout. Date, size, 

 number of pages and plates of the paper, the pages and plates con- 

 cerned with the subject-matter, and the place of publication (as in 

 titlepage) are all given, and often a note as to special points of 

 interest ; and the dates of birth and death of deceased authors are 

 entered where known. The very few papers that have not been 

 read or examined by the author of the Bibliography are marked 

 " not seen ; " and the rarity of this remark (only twenty out of 

 more than two thousand entries) is a striking proof of the persistent 

 energy of the Author in studying the Foraminifera for several 

 years with conscientious labour to the fullest extent. 



Mr. Sherborn gratefully acknowledges in his Preface much aid 

 from his many friends in every direction, including the libraries of 

 public institutions and others who have freely helped him. The 

 book is a perfect model of scientific bibliography, and will be of 

 great use to every one working at Foraminifera. 



Ouide for Scientific Ohservations in Travelling, in separate memoirs, 

 6fc. 8econd Edition, revised and augmented. Edited by Dr. G. 

 Netjmayer, Director of the German Marine Observatory. Anlei- 

 tmig zur tvissenschaftlicJien Beobachtungen Sfc. 2 vols, 8vo. 

 Berlin, 1888. With numerous woodcuts and two lithograph 

 plates. 



This work was originally produced in ]874 after the plan of the 

 well-known British Admiralty ' Manual of Scientific Enquiry,' and, 

 like that work, has received further improvements. The first 

 volume (655 pages) of this second edition contains memoirs as 

 follow: — 1. Geographical determination of places, by P. Tietjen ; 

 2. Topographic and geographic surveying, with tables, by W. 

 Jordan ; 3. Geology, with table of contents, by E. von Richthofen ; 

 4. Determination of the elements of terrestrial magnetism on land, 

 by H. Wild ; 5. Meteorology, by J. Hann ; 6. Instructions for 

 observing the general phenomena of the heavens with the naked 

 eye or with such instruments as travellers may have at their dis- 

 posal ; 7. Nautical surveying, by R. Hofiinan ; 8. Method of tidal 

 observations, by C. Boegen ; 9. Determination of the waterway in 

 unconfined rivers, by J. R. von Lorenz-Liburnau ; 10. Some ocean 

 problems : ^ currents, waves, colour, transparency, by 0. Kriimmel 

 (with a map) ; 11. Suggestions for observing the commerce of 

 nations, by M. Lindeman ; 12. Hydrographic and magnetic obser- 

 vations at sea, by G. Neumayer ; 13. Appendix (with table of con- 

 tents) : — 1. R. Assman's aspiration-psychrometer ; 2. An improved 

 mercury-barometer for travellers; 3. Determination of the snow- 

 line and conditions of snow in mountains ; 4. Ratzcl's questions 

 regarding snow in mountains ; 5. Temperature of springs ; 6. Hy- 

 drographic signs (plate) ; 7. Corrections for declination, inclination, 

 and total-force in iron ships ; 8. Useful tables (with list) : thermo- 



