POPULAR MISCELLANY. 



857 



" The Journal of Physiology." Michael Fos- 

 ter, Editor, January, 1883. W. T. Sedgwick, 

 Ph. B., Johns Hopkins University, Baltimore. 

 Pp. 42, with Plate. $5 a year. 



The Treatment of Acute Eczema. By George 

 II. Rohe, M. D. Baltimore, Md. : Office of Medi- 

 cal Chronicle. Pp. 7. 



What shall we do for the Drunkard ? By Or- 

 pheus Everts, M. D. Cincinnati, Ohio : Robert 

 Clarke & Co. Pp.51. Price, 50 cents. 



Law Reform and the Future of the Legal Pro- 

 fession. By Charles C. Bonuey. Chicago : Legal 

 News Company. Pp. 28. 



Sixteenth Annual Report, State Board of 

 Charities, New York. Albany : Weed, Parsons 

 &Co. Pp.28. 



Forest Protection and the Tariff on Lumber. 

 Spirit of the Press. No puolisher's name. Pp. 

 35. 



Report on ihe Development of the Resources 

 of Colorado. By Allen Smith, State Geologist, 

 Denver, Colorado : Chain & Hardy. Pp.159. 35 

 cents. 



Kissena Nurseries, Flushing, New York, 

 Catalogue of Ornamental Trees and Shrubs- 

 Parsons & Sons Company, limited. Pp. 88. 



Forestry Bulletins, Census Office, Nos. 24 and 

 25. Amount of Tannin in the Bark of some of 

 the Trees of the United States. Forests of West 

 Virginia. 



Archasological Institute of America. Bulle- 

 tin, January, 1S83. Pp. 40; Regulations, Offi- 

 cers, and List of Members. Pp.14. E.H. Green- 

 leaf, Secretary, Boston, Massachusetts. 



Prehistoric Trephining and Cranial Amulets. 

 By Robert Fletcher. United States Army. Wash- 

 ington: Government Printing- Office. Pp. 32, 

 with Plates. 



A Study of the Manuscript Troano. By Cyrus 

 Thomas, Ph. D. : Introduction by D. G. Brinton, 

 M. D. Washington : Government Printing-Of- 

 fice. Pp. 237. 



The Battle of theMoy: or, How Ireland gained 

 her Independence, 1892-1894. Boston: Lee & 

 Shepard. Pp.74. 



Catalogue of Books published by Houghton, 

 Mifflin & Co., Boston and New York. Pp. 80. 



TheNew-EnLilanders : A Comedy of the devo- 

 lution. By E. M. Davidson. New York : Collins 

 & Brother. Pp. 55. For private circulation. 



A Handbook of Vertebrate Dissection. By 

 H. Newell Martin. D. 8c, M.D., M. A., and Will- 

 iam A. Moale, M. D. Part II. How to Dissect a 

 Bird. New York: Macmillan & Co. 1883. Pp. 

 85. 60 cents. 



The Unending Genesis. By H. M. Simmons. 

 Chicago : Tiie Colegrove Book Company. 1883. 

 Pp. 111. 



Astronomy Corrected. By H. B. PMlbrook- 

 New York : John Polhemus. 1882. Pp. 54. 



An Outline of Qualitative Analysis for Be- 

 ginners. By John T. Stoddard, Ph. D., North- 

 ampton, Massachusetts. 18S3. Pp. 55. 75 cents. 



A Dictionary of Electricitv. By Henry Greer, 

 New York, Agent of the College of Electrical 

 Engineering. 122 East Twenty -sixth Street. 

 1-S33. Pp. 192. $2. 



Electro-Magnets. By T. H. Du Moncel. New 

 York : D. Van Nostrand. 1S63. Pp. 112. 50 

 cents. 



A Word, Onlv a Word. By Georg Ebers. 

 New York : Wiliiam S. Gottsbergcr. 1883. Pp. 

 348. 



A New Theory of the Origin of Species. By 

 Benjamin G. Ferris. New York : Fowler & 

 Wells. 1833. Pp. 278. $1.50. 



Report npon the i'rianirulation of the United 

 States Lake Survey. By Lieutenant-Colonel C. 

 D. Comstock. Wa-hingfon: Government Print- 

 ing-Office. 1883. Pp. 922, with 30 Plates. 



The Theories of Darwin and their Relation to 

 Philosophy, Religion, and Morality. Ily Rudolf 

 Schmid, with an introduction by the Duke of 

 Argyll. Cnicago: Jansen, McC'lurg & Co. 1883. 

 Pp. 410. $2. 



Notes on Evolution and Christianity. By J. 

 T. Yorke. New York : Henry Holt & Co. 1883. 

 $1.50. 



Astronomical paper prepared for the Use of 

 the American Ephemeris and Nautical Almanac 

 under the Direction of Simon Newcomb, Ph.D., 

 LL. D. Vol. I. Washington : Bureau of Naviga- 

 tion. 1882. Pp.487. 



POPULAR MISCELLANY. 



Aberrations iu Fog-Signals. Mr. Arnold 

 B. Johnson, of the Light-house Board of the 

 United States, has been pursuing on our 

 coast parallel investigations with those re- 

 ported some years ago by Professor Tyndall 

 on the aberrations of audibility of fog-signals. 

 The results of this work, as summarized by 

 Lieutenant-Commander F. E. Chadwick, U. 

 S. Navy, who aided in the investigation, are, 

 that navigators, when attempting to pick 

 up a fog-signal, must give attention to the 

 direction of the wind. If they are to the 

 windward of the signal, in a moderate breeze, 

 the chances are very largely against their 

 hearing it, for there is nearly always a sec- 

 tor, of about 120 to windward of the signal, 

 in which it. either can not be heard at all, 

 or is very faintly heard. As they bring the 

 signal to bear at right angles with the wind, 

 the sound will almost certainly in the case 

 of a light wind increase, and will soon as- 

 sume its normal volume, being heard almost 

 without fail in the leeward semicircle. Fog 

 appears not to be a factor of any conse- 

 quence whatever in the question of sound. 

 Signals may be heard at great distances 

 through the densest fogs, which may be to- 

 tally inaudible in the same directions and at 

 the same distances in the clearest atmos- 

 phere. It seems established by numerous 

 observations that the best possible circum- 

 stances for hearing a fog-signal are in a 

 northeast snow-storm, and they appear to 

 be best heard then with the observer to 

 windward of the signal. In light winds the 

 signal is best heard down the wind or at 

 right angles with the wind. The worst con- 

 ditions for hearing sound seem to be found 

 in the atmosphere of a clear, frosty morning 

 on which a warm sun has risen and has been 

 shining for two or three hours. The result 

 of the whole is, that " the mariner will do 



