< Back

Forerunner of the computer

LEMPE, A.J.L.
Beschrijving en Handleiding eener Reken-Machine met Staafjes, geschikt om kinderen, in eenen korten tijd, de gewone rekenkunde op eene doelmatige, bevattelijke en aangename wijs, zoo wel théorétisch als practisch te leeren.

With vignette on title, numerous figures in text, and illustrations on 2 large folding woodcut plates, coloured by hand.

With vignette on title, numerous figures in text, and illustrations on 2 large folding woodcut plates, coloured by hand.

With vignette on title, numerous figures in text, and illustrations on 2 large folding woodcut plates, coloured by hand.

With vignette on title, numerous figures in text, and illustrations on 2 large folding woodcut plates, coloured by hand.

With vignette on title, numerous figures in text, and illustrations on 2 large folding woodcut plates, coloured by hand.



Leyden, D. du Mortier en Zoon, 1839. Contemp. boards. With vignette on title, numerous figures in text, and illustrations on 2 large folding woodcut plates, coloured by hand. 46, (2) pp.

First and probably only edition of an illustrated manual on a "calculation-machine with bars", invented by a school-teacher at Leyden, and meant to teach arithmetic in an easy and practical way. As the author explains in his preface, his calculation machine was based on the invention of "Nepar", a mathematician from Scotland, meaning of course Napier and his discovery of logarithms. Lempe adapted Napier's invention and constructed a machine with bars, by the use of which small children could make themselves familiar with numbers and number combinations in a clear and practical way, and by which older children could solve the most difficult arithmetical problems very easily.
As the author proudly announced, his arithmetical machine had been approved of by the school inspection, and by professor Jacob de Gelder. Lempe assured his readers, should of course stay in use, because the machine could not replace De Gelder's school-books, but could only be of use to solve the problems given in the books. The present manual explains as well as illustrates at length the working of the arithmetical device, and presents numerous examples for the use of the machine at all stages of arithmetical teaching.

Fine copy.- (Binding sl. rubbed; small tear in one plate).
Bierens de Haan 2726.

Related Subjects: 19th Century  Arithmetics  Dutch  Education  Probability  Schoolbooks 

Add to Shopping cart
€ 1.250,00

Prices in EUROS (€), shipping and BTW/VAT extra.

< Back

Terms of sale

All items are offered subject to prior sale. Prices are nett and in (€) EURO. VAT/BTW, postage, and insurance are not included. 

Free shipping for orders over € 2,500.  EU customers: if applicable, please quote your VAT number when placing orders.

Preferred mode of payment: by credit card through our secure online payment service, which is facilitated by Ogone. If you wish to make other arrangements, please contact us. Terms of sale

E-mail this to a friend







This is a captcha-picture. It is used to prevent mass-access by robots. (see: www.captcha.net)

Type the characters that you see in the box (5 characters). The code can include characters 0..9 and A..F.*

  


Antiquariaat FORUM B.V.
Tuurdijk 16
3997 MS t Goy-Houten,
The Netherlands
Phone: (+31) (0)30 601 1955
Fax: (+31) (0)30 601 1813
E-mail: info@forumrarebooks.com
Web: http://www.forumrarebooks.com