448 



NA TURE 



[March 8, 1894 



those which they had in the oiiginal parallelepiped. To see 

 this, remark first that among the thirty-six edges of the six 

 tetrahedrons seven different lengths are found which are respec- 

 tively equal to the three lengths of edges (three quartets of equal 

 parallels) ; the three lengths of face-diagonals having ends in P 

 or Q (three pairs of equal parallels) ; and the length of the 

 chosen body-diagonal pq. (Any one of these seven is, of 

 course, determinable from the other six if given.) 



In the diagram. Fig. 7, full lines show the edges of the primi- 

 tive parallelepiped, and dotted lines show the body-diagonal PQ 

 and two pairs of the face-diagonals, the other pair of face- 

 diagonals (PF, QC), not being maiked on the diagram to avoid 

 confusion. Thus, the diagram shows, in the parallelograms 

 QDPA and QEPB, two of the three cutting planes by which it is 

 divided into six tetrahedron?, and it so shows also two of the six 

 tetrahedrons, qpdb and qpea. The lengths QP, QD, QE, QF are 

 found ia the edges of every one of the six tetrahedrons, the two 

 other edges of each being of two of the three lengths QA, QB, 



QC. The six tetrahedrons may be taken in order of three pairs 

 having edges of lengths respectively equal to QB and oc, QC and 

 QA, QA and QB. It is the third of these pairs that is shown 

 in Fig. 7. Remark now that the sum of the six angles of the 

 six tetrahedrons at the edge equal to any one of the lengths qp, 

 QD, QE, QF is four right angles. Remark also that the sum of 

 the four angles at the edge of length qa in the two pairs of 

 tetrahedrons in which the length QA is found is four right angles, 

 and the same with reference to QB and QC Remark lastly that 

 the two tetrahedrons of each pair are equal and dichirallyi 

 similar, or enantiomorphs as such figures have been called by 

 German writers. 



( To be continued. ) 



UNIVERSITY AND EDUCATIONAL 

 INTELLIGENCE. 

 Cambridge. — The following is the speech delivered by the 

 Public Orator (Dr. Sandys) on March I, in presenting for the 

 degree of LL.D. honoris causa the Right Hon. the Earl of 

 Kintore, G.C.M.G., M.A. Trinity, Governor of South 

 Australia: — " Quam libenter salutamus ex alumnis nostris 

 unum, qui Britanniae in parte Septentrionali Collegii 

 florentissimi Aberdoniensis a conditore oriundus, inter colonias 

 nostras Australes Academiam Adelaidensem, quam inter filias 

 nostras non sine superbia numeramus, sua sub tutela positam 

 esse gloriatur. Ibi provinciae maximae tota Gallia, tota Ger- 

 mania, plusquam quadrupio latiuspatenti praepositus, regionem 

 tam immensam audacter peragravit, itineris tanti socium 

 insignem nactus medicum Cantabrigiensem, cuius ipsum nomen 

 Caledoniae suae castellum in memoriam revocat. Quid com- 

 memorem proconsulis nostri ductu plusquam quadraginta dies 

 inter loca deserta atque arida fortiter toleratos, rerumque 

 naturae solitudines reconditas feliciter reclusas? Quid (ne 

 maiora dicam) etiam talpae genus novum, quod 7iotoryctes 

 nominatur, e latebris suis in lucem protractum ? Quid eiusdem 

 auspicio et imperio etiam beluae antiquae, quae diprotodon 

 vocatur, relliquias ingentes saeculo nostro denuo patefactas ? 

 Ipsum Sancti Georgii inter equites illustriores numeratum, non 

 draconem fabulosum vi et armis domuisse dixerim, sed mon- 

 strorum baud minus horrendorum vestigia immania sumptu et 

 labore maximo detegenda curavisse. Talium virorum auxilio 

 non modo imperii Britannici provinciae remotissimae vinculis 



_ 1 A pair of gloves are dichirally similar, or enantiomorphs. Equal and 

 similar right-handed gloves are chirally similar. 



artioribus nobiscum consociantur, sed etiam scientiarum fines 

 nostris a filiis totiens propagati per spatia indies latiora ex- 

 tenduntur. Duco ad vos scientiarum patronum illustrem, 

 provinciae maximae et proconsulem et investigatorem inde- 

 fessum, virum et suo et fratris sui nomine nobis coniunctissimum, 

 Algernon Keith -Falconer, Comitem de Kintore." Lord 

 Kintore was accompanied on his adventurous journey of 2000 

 miles from Port Darwin to Adelaide by Dr. Edward Charles 

 Stirling, Trinity Lecturer on Physiology in the University of 

 Adelaide. 



The following is the speech delivered by Dr. Sandys, 

 on March 6, in presenting for the degree of Sc.D. Dr. 

 S. Ramon y Cajal, Professor of Histology and Patho- 

 logical Anatomy in the University of Madrid : — " Hodie 

 laudis genus novum libenter auspicati, Hispanae gentis 

 civem nunc primum salutamus. Salutamus virum de physio- 

 logiae scientia optime meritum, qui inter fiumen Hiberum 

 montesque PjTenaeos duo et quadraginta abhinc annos natus et 

 fluminis eiusdem in rip'i Caesaraugustae educatus, primum 

 ibidem, deinde Valentiae, deinceps Barcelonae munere Aca- 

 demico functus , tot honorum spatio feliciter decurso, nunc 

 denique in urbe, quod gentis totius caput est, histologiae 

 scientiam praeclare profitetur. Fere decem abhinc annos pro- 

 fessoris munus Valentiae auspicatus, fore auguratus est, ut intra 

 annos decem studiorum suoium in honorem etiam inter exteras 

 gentes nomen suum notesceret. Non fefellit augurium ; etenim 

 nuper etiam nostras ad oras a Societate Regia Londinensi 

 honoris causa vocatus, muneri oratorio, virorum insignium 

 nominibus iampridem ornato, in hunc annum destinatus est. 

 Omitto opera eius maiora de histologia et dc anatomia con- 

 scripta ; praetereo etiam opuscula eiusdem quadraginta intra 

 lustra duo in lucem missa ; haec enim omnia ad ipsa scientiae 

 penetralia pertinent. Quid vero dicam deartificio pulcherrimo 

 quo primum auri, deinde argenti ope, in corpore humano fila 

 quaedam tenuissima sensibus motibusque ministrantia per 

 ambages suas inextricablies aliquatenus explorari poterant ? In 

 artificio illo argenti usum, inter Italos olim inventum, inter 

 Hispanos ab hoc viro in melius mutatum et ad exitum feliciorem 

 perductum esse constat. Si poeta quidam Romanus regione in 

 eadem genitus, si Valerius Martialis, inquam, qui expertus 

 didicit fere nihil in vita sine argento possi perfici, hodie ipse 

 adesset, procul dubio popularem suum verbis suis paululum 

 mutatis non sine superbia appellaret : — 



' Vir Celtiberis non tacende gentibus, 

 Nostraeque laus Hispaniae,... 

 Te nostri Hiberi ripa gloriabitur, 

 Nee me tacebit Bilbilis.' 



Marital, i. 49, 1-2; 61, 11-12. 



Duco ad vos virum et in Hispania et inter exteras gentes 

 laudem merito adeptum, histologiae professorem insignem, 

 Santiago Ramon y Cajal." 



Dr. J. B. Bradbury, Physician to Addenbrooke's Hospital 

 and Linacre Lecturer at St. John's College, has been elected to i 

 the Downing Professorship of Medicine, vacant by the resigna- \ 

 tion of Dr. Latham. \ 



Mr. P. H. Cowell, Senior Wrangler in 1892, has been j 

 elected to the Isaac Newton Studentship in Physical Astronomy I 

 and Optics. ; 



j The Arnold Gerstenberg Studentship, worth about £(^0 a year, j 

 1 will be awarded next May, on the results of an examination in j 

 I Psychology and Logic, commencing on May 21. Candidates! 

 I must have obtained honours in one part of the Natural Sciences 

 i Tripos, and have commenced residence earlier than April 

 i888. The student elected must devote himself to moral or 

 mental philosophy. 



NO. I 27 I, VOL. 49] 



The Queen has signified her approval of the appointment of 

 the following Commissioners to consider what are the best 

 methods of establishing a well-organised system of secondary 

 education in England, taking into account existing deficiencies, 

 and having regard to such local sources of revenue from endow- 

 ment or otherwise as are available or may be made available for 

 this purpose, and to make recommendations accordingly : — The 

 Right Hon. J. Bryce, M.P. ; the Right Hon. Sir J. T. Hibbert, 

 M.P. ; Mr. Henry Hobhouse, M.P. ; Mr. H. Llewellyn Smith : 

 Prof. R. C. Jebb, M.P. ; Mrs. Henry Sidgwick ; Mr. M. E. 

 Sadler ; the Rev. A. M. Fairbairn ; the Hon. E. Lyttelton . 

 Mrs. Bryant, D.Sc. ; Dr. R. Wormell ; the Very Rev. E. C! 

 Maclure ; Mr. George J. Cockburn ; Mr. J. H. Yoxall ; Si^ 

 Henry Roscoe, M.P., F.R.S. ; Lady Frederick Cavendish 

 Mr. C. Fenwick, ^LP. 



I 



