HER
WREN
KNT.
XXV.
Diatriba algebraica, qua annusperiodi Juliana e datis cycli's indagari & eruidocetur.—[Edita in $ta editione Helvici chronologic?, post prolegomena . Oxo-wT 1651.]
XXVI.
Ratiocinia anni Judaici.
XXVII.
De paschate.
XXVIII. • ‘
LeElurc? anglicc? & latince, de luce & refraElione.
XXIX.
Theory concerning the general Laws of Motion ; imparted to the Royal- PhilosophicalSociety, December 17, 1668. Tho’ entertain’d by the Author divers Years ‘^stfstfst 10 * 5 *Wore, and verify’d by many Experiments made by himself, and that other *Excellent Mathematician, Mr. Rook, before the said Society, as was attested byMany worthy Members of that illustrious Body.
Lex nature? de collistone corporum.
AT. B. All learned Men concerned in some historical Passages relating tothis Treatise, and to those communicated to the Royal Society by Dr. JohnAaliis, and Mr. Christian Hugens , on the same Subject; it was thoughtMost proper to publish them in the Language of the Learned, viz.
Cum novistimis menfibus nonnulli e Societate Regia in publico ejufdem con- PerHenricum.RJfu enixius urgerent, ut gravistimum illud de Regulis Motus argumentum, non Re rfecrRind inter ipfas antehac agitatum, fed, pluribus aliis intercurrentibus rebus, nun-\Uam, uti par erat, difcujsum expensumve, tandem aliquando examini rigido sub-Jefflum conficeretur ; visum equidem suit illustrijjimo isto ccetui decernere, ut quot-Huot e focus fits mdagandee IVIotus mdolt pre? cceteris tncubutjfent, rogarentur utsu a i n rem Ufam meditata, & inventa depromere, fimul & ed, quœ ab illh virisfocellentibus, Galilæo put a, Cartefio, HonoratoFabri, Joachimo Jungio, Pe-tr ° Borrelli, aliifque, de argumento isto fuerant excogitata, congerere procuraresilent-, eofcil. fine, ut consult is hoc paElo collatifque omnium fententiis, ilia de-ln c theoria, quee cum obfervationibus & experimentis, debitd curd &fide crebro^aSlis, quam maxime congrueret, civitate philofophica fuo jure donaretur.
-Ldito hoc celeufmate, incitati protinus e diEld Societate fuerunt, imprimis.Mlstianus Hugenius, Johannes Wallisius, Christophorus Wrennus, ut fuase Motu hypotheses & regulas, quibus condendis aliquandiu infudajfent, matu-st e & expedire fatagerent. FaElum bine, ut Je le El us ille virorum prœftan-l lfimorum trias, post paucarum feptimanarum fpatium, theorias fuas, eleganterc fi 2 pendifaElas, tantum non certatim tranfmitterent, Regiæque Societatis superll * fintentiam exquirerent. Primus omnium D. Wallisius, fua de MotibusWandis principia, literis die 15 Novemb. 1668, datis, ejujdemque menfisst 29. traditis &prœleElis, comtnunicavit. Mox eum excepit D. Christopho-^ ? Wren, qui naturæ legem de collisions corporum, proximo menfe Decetn-r ' 5 ejusque die if. eidem Societati publice exhiberi curavit; quæ in mandatisstst fiedit, (prœ-habito tamen utnufque hujus authoris conjenfu) ut ad com-stst°i~em horum Jcriptorum communicationem, dijcufiionemque difiufiorem , resa typis mandaretur.
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