March 10, 1905.] 



SCIENCE. 



389 



authority to undertake it. This he gave without 

 hesitation, and in the most liberal manner, leaving 

 me free to act with the specimen as if it were my 

 own. * * * Tlie work of removing the necessary 

 plates and debris from above the base of the 

 specimen was tedious and difficult, being performed 

 entirely under a ten-power microscope, with tools 

 specially fashioned out of needles and fine steel 

 pens. It was completely successful, however, 

 without any mishap, and disclosed a structure 

 most extraordinary and anomalous, unlike any 

 of the previous suppositions, and wholly at vari- 

 ance with that of any other known erinoid. 



It is finally concluded that the genus is 

 intermediate between the great groups of 

 Flexibilia and Camerata; nearest, apparently, 

 to the Reteocrinidse. The memoir is illus- 

 trated by a beautiful plate of drawings by 

 K. M. Chapman and E. Ricker, showing not 

 only all aspects of Cleiocrinus, but also Reteo- 

 crinus and Glyptocrinus for comparison. 



T. D. A. C. 



SCIENTIFIC JOURNALS AND ARTICLES. 



The Journal of Experimental Medicine es- 

 tablished by Dr. W. H. Welch, of the Johns 

 Hopkins University, will hereafter be pub- 

 lished under the auspices of the Rockefeller 

 Institute for Medical Research, and will be 

 edited by Drs. Simon Flexner and Eugene L. 

 Opie. The scope of the Journal will sutler 

 no alteration by reason of the change of man- 

 agement, and it is hoped that it may continue 

 to cover, as heretofore, the field of experi- 

 mental medicine. It is proposed to issue 

 numbers of the Journal at bimonthly intervals, 

 six numbers to constitute a volume, which will 

 contain not less than six hundred pages. 



The opening (January) number of volume 

 6 of the Transactions of the American Mathe- 

 matical Society contains the following papers : 



P. F. Smith: 'On the linear transformations of 

 a quadratic form into itself.' 



E. V. Huntington: 'A set of postulates for 

 real algebra, comprising postulates for a one- 

 dimensional continuum and for the theoiy of 

 groups.' 



W. A. Manning: 'On the primitive groups of 

 class 3p.' 



L. E. Dickson : ' The minimum degree t of 

 resolvents for the p-section of the periods of 

 hyperelliptic functions of four periods.' 



G. A. MiLLEE: 'Determination of all the groups 

 of order 2"* which contain an odd number of 

 cyclic subgroups of composite order.' 



E. D. Roe : ' On the coefficients in tlie quotient 

 of two alternants.' 



E. J. VViLCZYNSKi: 'General theory of curves 

 on ruled surfaces.' 



O. Veblen : ' Tlieory of plane curves in non- 

 metrical analysis situs.' 



The Museums Journal of Great Britain for 

 January contains the second part of an article 

 on ' School-Children and Museums,' by Henry 

 Coates and Alex. M. Rodger, and ' The School 

 Nature-Study Union,' under which is given a 

 list of the museums, zoological and botanical 

 gardens, in and about London and the facili- 

 ties they afford teachers and students. There 

 are a description of the Liverpool Museum as 

 now arranged and a large number of notes 

 about museums. Like Nature the Museums 

 Journal is particularly strong in its notes, 

 which form a most important portion of any 

 scientific journal. 



SOCIETIES AND ACADEMIES. 



THE NEBRASKA ACADEMY OF SCIENCES. 



The fifteenth annual meeting of the Ne- 

 braska Academy of Sciences was held in the 

 Hall of Mechanic Arts, State University, Lin- 

 coln, January 27-28, and included a business 

 session, sessions for the reading of papers and 

 a social session on the evening of the latter 

 date. 



The following papers were presented: 



Pkofessor H. B. Duncanson: President's Ad- 

 dress: 'The Relation of the State to Scientific 

 Investigation.' 



Dr. H. H. Waite: 'The Duty of the State to 

 the Public in tlie Prevention of Certain Diseases.' 



Dean H. B. Ward : ' Some Observations on the 

 Biological Conditions of Elevated Lakes' (with 

 lantern) . 



Professor 0. V. P. Stout: 'An Economical De- 

 sign for Measuring Flumes.' 



Dr. G. E. Condra : ' The Possible Development 

 of Nebraska's Stone-quarrying Industries.' 



Professor F. D. Heald : ' Preliminary Note 

 on a Black Rot of Apples.' 



Dr. R. H. Wolcott: 'A New Mite AlTecling 

 Greenhouse Plants.' 



Professor B. E. Moore : 'A Color Study of 

 Cobalt Solutions.' 



