256 OPTICS. 



meus). Dissertatio...derefractioneastronomica. See Du- 

 raeus (E.). Dissertatio academica de refractione, &c. 4 174*2. (Astro- 



E. 



EDWARDS (EDWARD). Practical treatise of perspective on the prin- 

 ciples of Brook Taylor. 4 London, 1803. 

 ELLIOTT (J.). Philosophical observation on... vision. See Elliott (J.). 



Philosophical observations, &c. 8 1780. (Miscellaneous.) 

 EMERSON (W.). The elements of optics ; 1st, simple optics; 2nd, cat- 

 optrics ; 3rd, dioptrics ; 4th, the construction of optical instruments ; [to 

 which is added] perspective ; 2 pts. in 1 vol. 8 London, 1768. 

 ESCHINARDUS (FRANCISCUS). Ad doctissimum geometram Lemmium 

 de Rubeis, 15 Sept. 1667, epistola, seu centuriae opticae problema. 4 



Sig. k k of an unknown publication, probably a literary journal. It is marked 

 No. LI. in the margin, and extends from p. 253 to 260. 



. Centuria problematum opticorum, in qua praecipuse difficultates cat- 



optricae et dioptricae solvuntur. 4 Romz, 1666. 



Dialogus opticus, in quo aliquibus quaesitis compcndiose respon- 



detur. 4 Romce, 1666. 



EULERUS (LEONIIARDUS). Constructio lentium obiectivarum ex du- 

 plici vitro, quae neque confusionem a figura sphasrica oriundam, neque 

 dispersionem colorum pariant. 4 Petropoli, 1762. (Four copies.) 



. Dioptricae ; pars prima, de explicatione principiorum ex quibus Con- 

 structio tarn telescopiorum quam microscopiorum est petenda ; pars 

 secunda, de constructione telescopiorum dioptricorum, cum appendice 

 de constructione telescopiorum catoptrico-dioptricorum ; pars tertia de 

 constructione microscopicorum tarn simplicium, quam compositorum ; 

 3 vols. 4 Petropoli, 1769-71. 



EVANS (T. S.). Experiments on the calorific powers of the different 

 msmatic rays. See Evans (T. S.). Historical memoranda, &c. 8 1815. 



F. 



FABER or FABRI (HONORATUS). De lumine. See Faber (H.). 

 Dialog! physici. 8 1669. (Miscellaneous.) 



FEARN (JOHN). A letter to Sir D. Brewster. 8 [London, 1832.] 



. A rationale of the laws of cerebral vision, comprising the laws of 



single and erect vision deduced upon the principles of dioptrics. 8 

 London, [1830.] 



. Color images in the brain ; being intended as a supplement to the 



rationale of the laws of cerebral vision. 8 London, 1831. 



. The human sensorium investigated as to figure, being a second sup- 

 plement to the rationale of cerebral vision. 8 London, [1832.] 



FERGUSON (JAMES). Lectures on... optics, &c. See Ferguson (J.). 

 Lectures on select subjects, &c. 8 1770. (Miscellaneous.) 



. 8 1790. (Miscellaneous.) 



FISHER (E. G.). Sur les anneaux colores, la double refraction, la pola- 

 risation de la lumiere, &c. See Fisher (E. G.). Physique mecaniquc. 

 8 1830. (Miscellaneous.) 



FISHER (GEORGE). On the atmospherical refraction. See Parry (Sir 

 W. E.). Appendix. 4 1825. ( Voyages.) 



FOSSOMBRONI (VITTORIO). Saggio di ricerche sull* inteusitu del 

 lume. 4 Arezzo, 1781. 



