Februaby 16, 1906.] 



SCIENCE. 



275 



have had the labor of handling large num- 

 bers of papers and maps in laboratory exer- 

 cises in physiogi'aphy and in meteorology will 

 appreciate this publication. In flexible covers, 

 we have, on separate sheets held together by 

 paper fasteners, , fifty-five exercises, in very 

 direct and precise form, designed to call the 

 attention of the student to the essential points 

 in each subject discussed. The exercises can 

 be put in any order that is desired, and any 

 teacher can add, subtract or multiply as he 

 sees fit, or as his opportunity permits. At the 

 end of the note-book there are a number of 

 extra pages of blank paper, and also sheets 

 of section paper, and outline maps of various 

 kinds. Several copies of each of these maps 

 are included, for use in different exercises. 



About one half of the exercises are meteor- 

 ological in their character, and are on the 

 whole satisfactory and well worded. It is 

 easy to say that they might be improved, 

 because they probably do not exactly fit the de- 

 mands of any large number of teachers. But 

 with all the limitations which must be ex- 

 pected in any scheme of laboratory work de- 

 signed by some persons for other persons, we 

 may, nevertheless, commend Professor Dar- 

 ling's ' Manual ' as a very useful, compact and 

 effective laboratory guide, which can not fail 

 to improve and systematize laboratory teach- 

 ing in physiography' and meteorology. We 

 suggest that the blank tables for entering the 

 meteorological records are too rigid, and do 

 not call for that variation from week to week 

 which is an essential in keeping up interest in 

 the subject. And we fail to see how the out- 

 line weather maps can be copyrighted, for 

 they seem to us nothing more than a repro- 

 duction of the regular Weather Bureau sta- 

 tion map. 



NOTES. 



Observations of temperature during the re- 

 cent solar eclipse made on board the P. and 

 O. steamship Arcadia, off the coast of Spain, 

 showed a fall from 82.4° to 72.5°. 



Dr. J. M. Pernter, whose book, ' Meteor- 

 ologische Optik,' covers a field in meteor- 

 ology which had not previously been occupied, 

 has recently published two additional studies 



along the same line. These are entitled: 

 '■ Erklarung des f alschlich ' weisser Regen- 

 bogen ' benannten Bouguer 'schen Halos," and 

 ' Zur Theorie des von einer kreisf ormigen 

 Lichtquelle erzeugten Eegenbogens.' Both 

 appear in the Sitzungsberichte of the Vienna 

 Academy of Sciences, June and July, 1905. 



Apropos of the recent note in Science con- 

 cerning the results obtained by Mr. Clayton 

 during the past siunmer in sounding the free 

 air over the tropical Atlantic, it may be worth 

 while to call attention to two papers by 

 Hergesell on this same subject in the Bei- 

 trdge zur Physik der freien Atmosphdre, Vol. 

 I., No. 4, 1905. In these papers are discussed 

 the results obtained by Hergesell while on the 

 yacht of the Prince of Monaco in the sum- 

 mers of 1904 and 1905. 



The U. S. Weather Bureau eclipse party at 

 Daroca, Spain, observed a fall of 8° in tem- 

 perature during the eclipse. There was no 

 notable change in the wind. 



The ISTovember number of Education con- 

 tains an article by Dr. Frank Waldo, on 

 ' The Study of Meteorology,' which deals 

 chiefly with meteorological and climatological 

 instruction given at Harvard. 



' HoHENKLiMA und Bergwandcrungen in 

 ihrer Wirkung auf den Menschen ' is the title 

 of an elaborate work just issued in Germany. 

 The authors are teachers at the University of 

 Berlin (Loewy and Miiller), and at the 

 Landwirthschaftliche Hochschule in Berlin 

 (Zuntz and Caspar!) . The book numbers 

 nearly 500 pages, and presents the results of 

 experimental studies on high mountains and 

 in the laboratory. It contains many illustra- 

 tions. 



The self-recording rain-gauge designed by 

 S. P. Fergusson, of Blue Hill Observatory, is 

 now constructed and for sale by the Inter- 

 national Instrument Company, of Cambridge, 



Mass. 



A SMALL-SIZE, relatively inexpensive, so- 

 called piesmic barometer, designed by A. S. 

 Davis, is for sale by F. Darton & Co., St. 

 John Street, London, E. C, for £1 to £1 15 s. 

 This barometer has a tube seven inches long. 



