(232) 
%vhicb,being beheld from a determinate place,arc reforaiM; Adding 
hereunto the doCtrine of the Propagation of Light. 
Concerning his P^r/^^^/W, he i. gives the Grounds thereof ; 
2. teaches Ichnography and Scenography 5 3. exerqifes the Art of 
Perrpeai\^e upon Roof s and Vaulted places ; 4.treats of Shadows; 
annexing thereunto a Delineating Parallelogram. 
Touching his Catoptricks,\\t therein confiders the Reflexions both 
of PJain,ConveXjand ConcaVe GlafTes : As in his Diof tricks, hdi^i^g 
explain'd the nature of R efraftion, he writes of Concave and Con- 
vex Speftacics,as aifoof Telefcopes and Microfcopes : Subjoyning 
thereunto a Difcourfe touching Refraflions coloured, and the co- 
lors of Rainbows, and Prifines. So far the fecond Tome. 
Tht third Tome contains hisTreatifes about Mufick, Pyrotech- 
ny,Af}rolabes,Dialling,Aftironomy,Galendars,Aftrology, Algebra, 
the Method of Indivifibles, and Conique Seftions. 
In the lYeacife of Muftck he confiders the nature and properties 
of Sound,and the ireafon of Hamiony^as alfo the 3 Syftems of Mufick, 
i//<2;tDiatonick,Chromatick,and Enharmonick. 
In that of iPjfrotechm^ht teaches, i. the way of making all forts of 
Artificial Fire«vvorks,both Feftival and Martial ; 2.he treats of the 
Art of Gunnery, and Baliflicks. 
. In the dbftrine oijjlrohbes he Writes of both the Globes, of the 
Akalem^d^the lIniverfal,Horizontal,and other Aftrolabes. 
His Z>/^iZy^^ Treatile delivers j?r^the Way of making Dials in 
any Plain ; and tbm Reflex ind Refrafled ones. 
His Jjlronomy cOiltains 7 Books: i .Gives the doftrine of the Pri^ 
mum motile,zud the fere^aj Syflems. a.Of the Sun* 3.Gf the Moon. 
4.0f the Cycles. 5 .Of ffie three fuperio^ Planets,Sattijrn, Jupi ter and 
Mars.6.0f thd two ji^ire^Plani^fs^M^^^^ md Venus. 7. Of Comets. 
His C'dhdar con)6fm kM^^ the whole Civil Year with 
the Motions of the Siin alid Moon r Annexing thereunto the Civil 
Years of various Nations, Qutftions about Eafter; Confiderations 
about the G61den Number; EpaSs^ Solir Cycfe^Indifiions, Biffex- 
tils, thejulian Period) i^r; --^'^^- ^ :^^'-'] :oj i jirr, - 
Touching Afitols^yi ftrike5 fehsiti 9(j t-cjf th6T)mi#^r'^f Mathe- 
matical Difciplineis, andVeprefimtsthegreat vanity ther&^^ 
Of the three remaining Treatlfes, yiz. his ^^<f^r^>Do(Srine ofln* 
diviftbles and Conick SeSfiohs^ M faith',fic liatll^rtrferved them to the 
laft, left yourig Students of the bedererred 
or too lohgidetained by thdft ftioi^ knotty or more difficulc 
Studies; '^^^^^ ^ ^ X'^^'^ 
Thus 
