“ For as the secret of your Experiment consists in contriving, that the picture of an Object may fall just on the Optick Nerve, or thereabout, M. Picard hath devised a way, by which an object is lost keeping both Eyes open, by letting the image of the object fall on both the Optick Nerves at one and the same time, after this manner ”

“ Fasten against a wall a round white paper, of the bigness of an inch or two, and on the side of this paper put two marks one on the right, the other on the left side, each about two foot distant, then place your self directly before the Paper, at the distance of about nine foot, and put the End of your finger over against your both Eyes, so that it may hide from the right Eye the left mark, and from the left Eye, the right mark. ”

“ But for the Free passage of the Sound into the Ear, it is requisite, that the Tympanum be tense and hard stretched; otherwise the laxness of that membrane will certainly dead and damp the Sound. And because the Tympanum is fixed in the circumference thereof to the Annulus Osseus, and so is not capable of Tension that way, in such manner as a Drum is braced; there remains another way, by drawing it at the Center into a Conoid form. And that is the principal office of the 3. Ossicles, viz, the Malleus, Incus, and Stapes ”

“ That vision by aid of a Telescope or Microscope, is not deceitful: And an Observation of the likeness between the Earth and the Moon.
This same Author in his Letter to Mr F. C. suggests, that Cassini hath observed the Motion of Jupiter about his Axis in 10 hours; of Mars in 23 hours; that Venus hath the like Rotations: but the precise period not yet known; that Cassini hath publish'd Tables of the Motion of the Safellits of Jupiter, with an Ephemeris of the same for this present year: All which are there much applauded. ”

“ If you remain firm in that posture, and look steddily with both Eyes on the end of your finger, the paper, which is not at all cover'd thereby, will altogether disappear; which must be the more surprising, because that without this particular encounter of the Optick Nerves, where no Vision is made, the paper would appear double, as you will finde as often as the finger shall not be placed as it ought to be, or when the sight is carried any thing sideways ”

“ Which may very well give a check to your opinion, forasmuch as those trunks would hinder the objects, falling on them, from coming to the Choroides which would render the image deficient in that place, in regard that those species would not be able to make an impression on the Organ of Vision through those vessels. ”

“ This Experiment hath given me cause to doubt, Whether Vision was indeed perform'd in the Retina (as is the Common opinion) or rather in that other Membrane, which at the bottom of the Eye is seen through the Retina, and is called the Choroides. For if Vision were made in the Retina, it seems that then it should be made whereever the Retina is ”

“ But it issued out of the Horizontal Clouds, so that I thought, the Head of the Comet was either vailed by them, or hid under the Horizon. It followed the Motion of diurnal revolution Westward, and it was to be seen about the second hour of the night; for then it was demersed in the mists of the Horizon.
Not far from its pointed end Eastward, there appeared a Star, equal to the brightest of the Fourth magnitude, almost in the same place, where was observ'd the Comet of A. 1664. Decemb. 31. ”

“ Seniores vero sapientiores, et bene exercitati Medici, vix, ni fallor, credent, illum dia inter multos et multifarie ægrotos versatum fuisse, qui audacter de peculiarium remidorum virtutibus, nonquam fallentibus, ad experientium provocat. ”

“ This Experiment I made often, varying it by different distances, and removing or approaching the Papers to one another proportionally, I made it also with my left Eye, by keeping my Right shut, after I had fastned the Second paper on the Left side of my point of Vision; so that from the Site of the parts of the Eye, it cannot be doubted, but that this deficiency of Vision is upon the optick Nerve. ”

“ The Surface of every Round Solid is equal to a Rectangle, whose Base is the Circumference of the Figure, by the Rotation whereof the Solid is begot, and the Height equal to the Circumference, which the Center of Gravity of the Perimeter of the Figure describeth. ”

“ For when one looks steddily with both Eyes on the End of one's finger, held before the marks, 'tis the same thing, as if you directed each eye by it self to the place, which is to be looked on to loose the paper ”

“ JAmdudam, Clarissime Oldenburgi, ab Oratore didici, ex omnibus virtutis præmiis, amplissimum esse Gloriam, atque etiam proculdubio omnibus maxime desiderabile, cum hæc unica sit, quæ brevitatem vitæ, posteritatis memoriâ consoletur; quæ efficit, ut absentes adsimus, ut mortui vivamus; & cujus gradibus homines in cœlum videntur adscendere. Humano generi ergo connatus videtur esse gloriæ appetitus, & ejus igniculi in ipsà pueritiâ videntur micare, quibus magna ingenia ad maxime Laudabilia peragenda stimulantur, & minora etiam ad aliquid malus agendum accenduntur. ”

“ And by the help of a Muscle drawing the Incus, these three bones, which otherwise could lye more streight, are brought to a Curved or Arched posture; and the Stapes being fixt unmovable, the Malleus yields, to bring the terms of that line nearer, in proportion as it is curved, and draws the Center of the Tympanum, stretching the surface of it from a Plain to a Conoid figure, within the same Circumference. And l conceive, the action of this Muscle does ordinarily and constantly draw the Tympanum to a moderate Tension ”

“ A New Discovery touching Vision.
This is the Title of two or three printed sheets of paper, lately sent from Paris to the Publisher, by the no less Obliging than Ingenious Monsieur Justel; In which are contained both an Epistle of the Discoverer Monsieur L'Abbe Mariotte, of Dyons, to Monsieur Pecquet, and the Answer to it. Of both which we cannot omit to give the Reader the Substance in English, as follows, HAving often observed in Anatomical Dissections of Men as well as Brutes, that the Optick Nerve does never answer just to the Middle of the bottom of the Eye, i.e. ”

“ And having found, that the Auditory Nerve was not perished, but that he could hear the sound of a Lute-string, holding one end thereof in his Teeth; and had some perception of any very vehement sound, I supposed the defect to lie in the want of due Tension of the Tympanum of his Ear; whose use I took to be, onely to preserve the Auditory Nerve, and Brain, and inward parts of the Ear from outward injury by cold, Dull, &c and to be no more to Hearing, than glass in the window is in a Room to seeing, i.e. ”

“ Et si enim per plus quam duo annorum lustra præterita, diligenter in miscendis variis cum Animalium viventium sanguine liquoribus sudaverim, nec solum potulenta diversa, usque ad libras duas, in massam sanguineam infundi & misceri curaverim, sed etiam Emetica, Catharica, diuretica, Cardiaca & Opiata isto modo exhibuerim ”

“ Notatu etiam dignum est, quod tota illa methodus facilis D. Loweii, Transfusionis peragendæ, Mense Decembri, Anno 1666. à Te edita fuit, & non nisi mense Martii anni sequentis de tali operatione è Gallia andivimus. Verosimile ergo, ni fallor, videtur palmam hujus inventionis (si modo palmam mereatur) Anglis quàm Gallis potius debiri.
Cætera, libenter scirem, quibus rationibus ductus Romanus ille doctissimus Manfredi judicatit, hanc inventionem in Germania primo conceptam fuisse. Nobis enim adbuc nihil omnino occurrit, quod vel in minimam ejusmodi suspicionem ducere potuerit. ”

“ Monmori facta dicatur Anno 1658. vel a clarissimo Abbate Bourdelot, vel a docto Benedictino Roberto de Gabetts (de primo enim Prepositore necdum convenit) facile quivis in illam duci potuit sententiam, quod Galliæ experimenti hujus mentio prima saltem debeatur. Sed illa operatio, cujus in dictis illis Transactionibus mentionem fecisti, infusiæ scil. vini Emetici in massam sanguineam, per venam brachii servi cujusdam, in ædibus Legati alicujus peregrini, Londini tunc temporis commorantis, peracta, facta suit Anno 1657. ”

“ Which desire of his hath already been so farr entertain'd, that several of the Fellows of that Society have been nominated, and desired to peruse the Book with attention, and thereupon to make a Report accordingly, for the furthering and facilitating the Practice of what is therein aimed at.
IV. STANISLAI De LUBIENIETZ THEATRUM COMETICUM, duabus partibus constans; quarum Altera, Cometas A. 1664 & 1665, vaiis Virorum per Europam Clarissimorum, cum quibus Author de hoc Argumento contulit, Observationibus, dissertationibus, animadversionibus, descriptos & 59. ”