A boke named Tectonicon briefely shewynge the exacte measurynge, and speady reckenynge all maner lande, squared tymber, stone, steaples, pyllers, globes. [et]c. Further, declaringe the perfecte makinge and large vse of the carpenters ruler, conteyninge a quadrant geometricall: comprehendinge also the rare vse of the squire. And in thende a lyttle treatise adioyned, openinge the composicion and appliancie of an instrument called the profitable staffe. With other thinges pleasaunt and necessary, most conducible for surueyers, landemeaters, ioyners, carpenters, and masons. Published by Leonarde Digges gentleman, in the yere of our Lorde. 1556.
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Title
A boke named Tectonicon briefely shewynge the exacte measurynge, and speady reckenynge all maner lande, squared tymber, stone, steaples, pyllers, globes. [et]c. Further, declaringe the perfecte makinge and large vse of the carpenters ruler, conteyninge a quadrant geometricall: comprehendinge also the rare vse of the squire. And in thende a lyttle treatise adioyned, openinge the composicion and appliancie of an instrument called the profitable staffe. With other thinges pleasaunt and necessary, most conducible for surueyers, landemeaters, ioyners, carpenters, and masons. Published by Leonarde Digges gentleman, in the yere of our Lorde. 1556.
Author
Digges, Leonard, d. 1571?
Publication
Imprynted at London :: By Thomas Gemini, dwellynge within the Blacke Friers: who is there ready exactly to make all the instrumentes apperteynynge to this booke,
Anno. 1562.
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Subject terms
Mensuration -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A20450.0001.001
Cite this Item
"A boke named Tectonicon briefely shewynge the exacte measurynge, and speady reckenynge all maner lande, squared tymber, stone, steaples, pyllers, globes. [et]c. Further, declaringe the perfecte makinge and large vse of the carpenters ruler, conteyninge a quadrant geometricall: comprehendinge also the rare vse of the squire. And in thende a lyttle treatise adioyned, openinge the composicion and appliancie of an instrument called the profitable staffe. With other thinges pleasaunt and necessary, most conducible for surueyers, landemeaters, ioyners, carpenters, and masons. Published by Leonarde Digges gentleman, in the yere of our Lorde. 1556." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A20450.0001.001. University of Michigan Library Digital Collections. Accessed May 19, 2025.
Pages
To searche out heightes by the Scale, with the ayde
of two places.
THE XVIII. CHAPTER. (Book 18)
LEt the threade and plummet fal in the one, on the .12.
poyntes: in thother stacion, on the .6. of the right sha∣dowe:
double the distāce betwene the two places, the
summitie appeareth from that part of ye thing mea∣sured,
which is equall in hight with your eye. Or the
one in the .12, the other in .8. of right shadow: then try∣ple
the distāce. The one in the .12. the other in .6. of right, quaduplate
the space. The one in the .12. the other in .6. of the contrary shadowe,
then the space betwene bothe ye stacions is equall with that ye mea∣sure,
euer vnderstandinge from your eye vpwarde. Euen that same
cometh to passe, if in the one the threde be founde vpon the .6. of the
contrary, in the other one the .4. of the same. or the .4. and .3. of the cō∣trary:
In all thes the Spaces are equall with the altitudes. So then
in measurynge the distaunce betwene the two places, ye haue the
heyght, from your eye vpwarde, puttyng to it the length from your
syght downewarde, the whole Altitude appeareth: the base beynge
equall wyth your standinge.
descriptionPage [unnumbered]
I Woulde not haue you ignorant here howe to knowe lengthes
which be in height not easy to come vnto. Fyrste (as before) get
the height of the toppe, the altitude of the base or longest parte
of your lengthe. Subduct the lesse heighte out of the more, of force
your desyred lengthe remayneth.* 1.1 Or thus: Let the plummet and
threde fall in the .12. marke your place: go in towarde the thinge (the
threde as it was) vntyll ye see the base of that lengthe: the distaunce
betwene the two standinges, is vndoubtedly the lengthe.