Sbe TUniversits of (tbicagoPrice $J.OO founded by john d. rockefeller Single CopiesPer Year 5 CentsUniversity RecordPUBLISHED BY AUTHORITYCHICAGOTLbe IHnfversftE of Gbfcago pressVoIT^ NO. 7 PUBLISHED EVERY FRIDAY AT 3:00 P.M. MAY 18. 1900Entered in the post office Chicago, Illinois, as second-class matterCONTENTS.I. Reports from the Zoological Club. By Dr.C. M. Child -. - - - - - 73-74II, Official Notices ------ 74III. Current Events ------ 75IV. Calendar 75REPORTS FROM THE ZOOLOGICAL CLUB.*BY DR. 0. M. CHILD.At the meeting of January 10 Mr. R. H. Johnson presented a paper prepared in collaborationwith Mr. R. W. Hall, entitled "Variation in Pa-laemonetes correlated with Salinity." After calling attention to the fact that our marine speciesof Palaemonetes differs from the fresh water formin presenting a greater number of rostral te.eth,Mr. Johnson stated that various lots of the marinespecies which were collected in brackish watershow an intermediate condition as regards therostral teeth. A complete series of intermediateforms exists and the natural inference is that thedifferent degrees of salinity cause the observeddifferences in form. The experiment of rearingthe animals in media of different degrees of salinity has not yet been made by the authors butwill be attempted as this alone will afford complete evidence in regard to the matter.* Meetings of the Winter Quarter, 1900. The second paper of the meeting was a reviewby Mr. A. N. Young of several recent papers byEdmond Bordage on regeneration in insects.The second meeting of the month was heldon January 31. The first paper of the session" A review of Bresslau's paper on the Developmentof the Rhabdocoels" was presented by Mr. E. H.Harper.The remainder of the session was occupied byan exhibition of a series of the extremely variableland snail Pyramidula strigosa Gould collectedby Hemphill from the Great Basin, a loan fromthe Powell Museum of the Illinois Wesleyan University through the kindness of Professor J. C.Hartzell. Attention was called to the directiontaken by some of the variations. The recordedlocalities seem to indicate that some of thevarieties are quite local in their distributionand that there is distinct geographical isolation.It was suggested that the history of the topography might throw light upon this isolation. Gilbert's map of Lake Bonneville showsthat the Oquirrh Mountains (the locality for theOquirrhensia and Utahensid) were then situatedupon a narrow peninsula. Climate may havesince aided in preserving this isolation. Thisspecies is of special interest to students of evolution and well deserves to be better and morewidely known.74 UNIVERSITY RECORDAt the meeting of February 14, Mr. W. J.Moenkhaus presented a paper entitled "SomeCritical Stages in Hybrid Development," givingsome of the results of his experiments upon theproduction of hybrids among fishes, and MissMary Hefferan reviewed Rand's papers on regeneration and regulation in Hydra. The followingis an abstract of Mr. Moenkhaus' paper."Of some twenty crosses made between some ofour commoner marine and fresh water fishes therewas not a single failure of impregnation, thoughmany of the crosses were between very distantlyrelated forms — soft rayed and spiny-rayed species.The per cent, of eggs impregnated, was, as a rule,quite large, but this bore no relation to thenearness of relationship. Two combinationsgave beautiful instances of what a study of thenuclear conditions has shown to be dispermy,fifty per cent, of the impregnated eggs fallingdirectly into four cells, the remainder into two.In all crosses segmentation. was carried through.Four crosses went to completion of gastrulation,forming the neural tube but no optic vesicles.The remainder hatched. From crosses amongthe trout it appeared that the formation of thetail is a difficult process. Considering in thisconnection the common phenomenon of infertility, it seemed that in hybrid fishes there were atleast four pretty definite stages in developmentthat are critical : (1) beginning and (2) close ofgastrulation ; (3) formation of tail bud ; (4) formation of the sexual elements."" The nuclear behavior during fertilization andduring degeneration in these partially successfulcrosses is being studied."The session of February 28 was devoted totwo papers ; a review and critique by Mr. E. R.Downing of Delage's recent work on the fertilization and development of enucleated egg-fragments, and a review by Miss Anne Moore ofCalkin's paper on "Mitosis in Noctiluca." A fewof the more important points touched upon byMr. Downing were as follows: " Delage finds in embryos produced by the fertilization of enucleated egg-fragments the normalnumber of chromosomes. He "claims to demonstrate: (1) a maturation of the cytoplasm corresponding to but independent of, that of thenucleus ; (2) that enucleated eggs resist hybridization as well as entire eggs and that therefore thenucleus has nothing to do with such resistance ;(3) that the female nucleus is inert and the maleexcitable. The latter conclusion is drawn fromthe fact that the whole eggs did not fertilize in adrop of water as well as the enucleated fragments.His conclusions were criticised, for the whole eggsin abundant water all fertilized as usual. Theonly justifiable conclusion would be that confinement in a drop of water prevents fertilization ofnormal eggs, while it is not an unfavorable condition for enucleated fragments. The smallavailable supply of oxygen may account for this.The second conclusion above given is drawn fromcontradictory results. The proper inference todraw is that, the possibility of entrance of thesperm is determined in hybridization by ptherthings than the presence or absence of the nucleus."At the session of March 14 a paper entitled"The Derivation of Annelid Nephridia" wasread by Mr. R. S. Lillie, consisting of a resumeand discussion of the various theories regardingthe morphological significance of annelid nephridia.OFFICIAL NOTICE.The examination for the Senior CollegeScholarship in Mathematics will be held in CobbHall, Room iid, in two sessions, as follows : 1)3 : 30 to 5 : 30 p.m., Friday, May 25 ; 2) 9 : 00 to12 : 00 a.m., Saturday, May 26, 1900.The examination for the Graduate Scholarshipin Mathematics will be held at the same time andP ' H. E. Slaught,Departmental Examiner.UNIVERSITY RECORD 75CURRENT EVENTS.Through the courtesy of W. A. Clark, of Columbia, S. C, the University has received a collectionillustrating the various processes of cotton manufacture.Through the courtesy of Messrs. Folwell Brothers, of Philadelphia, the University has receiveda collection illustrating the various processes connected with the manufacture of woolens andworsteds.The herbarium of the Field Columbian Museum has lately been enlarged and the case capacity nearly doubled ; so that ample space and table-room is now available for such University studentsas may desire to do work among the already largeand rapidly increasing collections.THE CALENDAR.MA Y 18-26, 1900. Sunday, May 20.Vesper Service is held in Kent Theater at4:00 P.M.Bishop John F. Hurst, Chancellor of the AmericanUniversity, will speak.Monday, May 21.Chapel- Assembly : The Junior Colleges. Chapel,Cobb Lecture Hall, 10:30 a.m.English Club meets in Chapel, Cobb LectureHall, at 4:00 p.m.Rev. Frederic E. Dewhurst of the University Congregational Church will speak on " Browning and theProblem of Optimism."New Testament Club meets at home of Professor Mathews at 7 : 30 p.m.Topic for discussion : " Sheldonism."Professor Will lectures in Cobb Lecture Hall, at8:00 P.M.Subject : " Government money vs. Bank money."Tuesday, May 22.Chapel-Assembly : The Senior Colleges. Chapel,Cobb Lecture Hall, 10:30 a.m.Botanical Club meets in Room 23, BotanicalLaboratory, at 5:00 p.m.Dr. Bradley M. Davis will present the results of hisoriginal studies on " The Nucleus in the Life Historyof Pellia."Wednesday, May 23.Pedagogical Club meets in Haskell AssemblyRoom at 8:00 p.m.Paper : " Pupil Government in Public Schools," byF. N. Williams. General discussion.Thursday, May 24.Chapel-Assembly: The Graduate Schools. Chapel,Cobb Lecture Hall, 10:30 a.m.Friday, May 25.Chapel- Assembly : The Divinity School. Chapel,Cobb Lecture Hall, 10:30 a.m.Saturday, May 26.Meetings of University Ruling Bodies in HaskellOriental Museum :The Administrative Board of University Affiliations, 8: 30 a.m.The Administrative Board of Libraries, Laboratories, and Museums, 10: 00 a.m.The Faculties of the Graduate Schools (injoint session), 11:30 a.m.Material for the CALENDAR must be sent to the Office of Information by THURSDAY, 8:30 A.M.,in order to be published in the issue of the same week.Friday, May 18,Chapel-Assembly : The Divinity School. Chapel,Cobb Lecture Hall, 10: 30 a.m.Mathematical Club meets in Room 35, RyersonPhysical Laboratory, at 4:00 p.m.Professor Moore reads on " The foundation of theCauchy-Goursat theory of functions of a complexvariable." Notes: "Continuity and convergence inapplied mathematics," by Mr. A. C. Lunn ; "Concerning the principles of mechanics," II, by Dr. Laves.Saturday, May 19.Meetings of University Ruling Bodies, HaskellOriental Museum :The Administrative Board of the UniversityPress, 8: 30 a.m.The Administrative Board of Physical Culture and Athletics, 9 : 00 a.m.The Faculty of the Divinity School, 9:30A.M.The Administrative Board of Student Organizations, Publications, and Exhibitions, 10:30 A.M.The Journals of the University of ChicagoBEING THE DESCRIPTIVE LIST OF FOUR MONTHLY,ONE WEEKLY, ONE BI-MONTHLY, THREE QUARTERLY,AND ONE SEMI-QUARTERLY PUBLICATIONS ^o*THE BIBLICAL WORLDEdited by President W. R. HARPER. A popular illustratedmonthly magazine. Subscription price in the United States,$2.00 a year; foreign, $2.50; single copies, 20 cents.The Biblical World is devoted exclusively to biblicalstudy, and so edited and illustrated as to afford thegreatest aid to the busy clergyman, the progressiveSunday-school teacher, and the thinking layman.THE SCHOOL REVIEW"Edited by Charles H. Thurber. Published monthly, exceptin July and August. Subscription price in the United States,$1.50 a year; foreign, $2.00; single copies, 20 cents.So adequately has the School Review served theinterests of High School and Academy work that it hascome to be recognized as the official organ of secondary education in the United States, It is devoted exclusively to this field, is progressive, practical, andhelpful, and is indispensable to every teacher.THE BOTANICAL GAZETTEEdited by John M. Coulter. Published monthly, with illus*trations. Subscription price, $4.00 a year in the UnitedStates; foreign, $4.50; single copies, 50 cents.The Botanical Gazette is an illustrated monthlyjournal devoted to botany in its widest sense. Formore than twenty year's it has been the representativeAmerican journal of botany, containing contributionsfrom the leading botanists of America and Europe.THE AMERICAN JOURNAL OF SOCIOLOGY Edited by Albion W. Small. Publishedbi-monthly, with illustrations. Subscription price, $2.00 ayear in the United States; foreign, $2.50; single copies, 35cents.The special aim of the American Journal of Sociology is to show that the " social problem " is bothmany problems and one problem. It has alreadyrhade. itself indispensable to Americans who are tryingto keep informed about the general tendencies in therapidly changing field of sociology.THE AMERICAN JOURNAL OF SEMITICLANGUAGES AND LITERATURESEdited by President WILLIAM R. Harper of the University ofChicago. Published quarterly. Subscription price, $3.00 ayear; foreign, $3.25; single copies, 75 cents.The object of this journal is to encourage the studyof the Semitic languages and literatures, to furnishinformation concerning the work of Semitic studentsat home and abroad, and to act as a medium for thepublication of scientific contributions in those departments. - Artiples are published in the German, Frenchand Latin, as well as in English. the journal of geologyEdited by T. C. CHAMBERLIN. Published semi-quarterly, withillustrations. Subscription price, $3.00 a year in the UnitedStates; foreign, $3.50; single copies, 50 cents.Devoted to the interests of geology and the alliedsciences, and contains articles covering a wide rangeof subjects. Adapted to young geologists, advancedstudents, and teachers.the astrophysical journalEdited by George E. Hale and James E. Keeler. Publishedmonthly, except in July and September, with illustrations.Subscription price, $4.00 a year; foreign, $4.50; single copies, 50 cents.An international review of spectroscopy and astronomical, physics. Invaluable to all who are interestedin astronomy and astrophysics.the journal of political econ-OMY Edited by J. Laurence Laughlin. Publishedquarterly. Subscription price, $3.00 a year; single copies,75 cents.This publication promotes the scientific treatmentof problems in practical economics, and also containscontributions on topics of theoretical and speculativeinterest.THE AMERICAN JOURNAL OF THE-OLOGY Edited by the Divinity Faculty of the University, of Chicago. Published quarterly. Subscription pricey$3.00 a year in the United States; foreign, $3.50; singlecopies, 75 cents.The only journal in the world so catholic in its scopeas to caver the entire field of modern investigation andresearch in all the different lines of theological thoughtrepresented by special fields and particular schools.THE UNIVERSITY RECORDEdited by the Recorder, of the University. Published weekly onFridays at 3:06 P. M. Yearly subscription, $1.00; singlecopies, 5 cents.The University Record is the official weekly publication of the University of Chicago. It contains articles on literary and educational topics. The quarterlyconvocation addresses and the president's quarterlystatements are published in the Record in authorizedform, together with a weekly calendar of Universityexercises. A special monthly number, enlarged insize, is issued the first full week in each month.SAMPLE COPIES FREE ON REQUEST. ADDRESSthe university of chicagopress .*.*;* Chicago; Illinois