Catalogue Number 12 - Susanne Schulz-Falster

Theory of Complex Equations
44 HÖCHHEIMER, Elias Hajum. Versuch einer Vergleichung
der höheren Gleichungen mit den arithmetischen Reihen. Auf
Kosten des Verfassers. Amsterdam, gedruckt mit Röderschen
Schriften, 1791. £550
8vo, pp. xiv, 40; title vignette and engraved head- and tail-pieces;
contemporary tan half calf over sprinkled boards, spine in
compartments, ruled in gilt; extremities a little rubbed; from the
Koninklyk Instituut van Ingenieurs, with stamp to title page and shelfmark
label, covering two letters of the title; a good copy.
First and only edition of a rare contribution on Thomas Hariot’s (ca 1560–
1621) theory of complex equations. Höchheimer compares complex equations
with arithmetic series, and applies them to powers of binomial roots
and complex equations.
Höchheimer, originally from Hochheim in Franconia, worked as an astronomer,
and later settled in Amsterdam.
Not found in OCLC/RLIN or KVK; not in Fürst, where some of his other works
are listed; on Höchheimer see Wininger, Große jüdische National Biographie III, p.
140.
Popular Journal for the Encouragement of Industry
45 [ITALIAN JOURNAL.] L’Ape delle Cognizioni utili ossia
Scelta delle migliori Notizie, Invenzioni, Cognizioni e Scoperte
relative al commercio, alle arti, all’agricoltura, economia rurale e
susanne schulz-falster rare books catalogue twelve
domestica, coltivazione degli orti e giardini, igiene pratica,
stabilimenti utili e Wlantropici, legislazione economica, ec. Le quali
per l’uso pratico possono più specialmente interessare il pubblico. Se
ne pubblica un fascicolo al mese di 32 pagine in 8vo. Capolago,
1833–1835. £1400
Three volumes, 8vo, pp. 192; 192, 20 (appendix), 5 folding printed
tables on four sheets, [193]–263, one folding printed table, [264]–358,
(121–126, 289–294, 332–358 fold-out pages); (folding printed table
after p. 32, lithograph map of Liverpool railway after p. 63, lithograph
plate after p. 220; 380; a number of folding printed tables within the
pagination; contemporary calf-backed marbled boards, spine in
compartments, with two gilt-lettered spine labels; a Wne set.
First edition of this popular ‘mass-market’ journal designed to popularise
inventions and innovations in the Welds of trade and commerce, rural and
domestic economy, chemistry and physics, public health and public institutions,
such as lending banks, insurance and philanthropic institutions, and
changes in legislation. The journal was founded by Giuseppe De Welz
(1785–1839), a banker and economist from Como, who saw the importance
of technical and industrial advance for the economic situation in Italy.
The present three volumes cover the Wrst three years when it was published
under De Welz’s direct inXuence in Capolago by the TipograWa Elvetica.
Publication was later transferred to Milan where it continued even after De
Welz’ death, but without the same ‘industrialist’ spirit.
The articles, many of them written by De Welz and fellow industrialists
from Piedmont and Lombardy, cover a wide range of subjects. Of particular
interest are the articles on the silk industry, manufacturing in general,