16mo, pp. 16; title and last page within woodcut geometrical frame and with woodcut central ornament, acting as front and rear wrappers, as issued; front cover soiled, dampstaining throughout.
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Libretto di abbaco per istruzione de’ fanciulli. Di nuovo rivisto, e corretto, con aggiunta di alcune regole.
Unrecorded issue of a printed ‘abacus’, a short textbook of practical arithmetic, intended for the education of children. The booklet starts with an explanation of numbers and their value according to their positions (units, tens, hundreds ...), followed by various multiplication tables, cross-checking calculations, mathematical operations and an explanatory table of Roman numbers.
No copies of the present issue are recorded on OCLC, COPAC or ICCU.
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Tables of interest, from one pound to five hundred millions, for one day; by which the interest for any sum of money within those limits may be found with more expedition than by any tables hitherto published. To the above are added, tables which have been formed with a view to expedite the business of those who deal in goods that are sold by the hundred weight.
One of two editions published in 1786, the other one undated, ESTC does not give any precedence. Tables for calculating interest at a quarter, half, three-quarters, three, four, and five percent; intended as a quick reference for bankers and merchants. Hurry precedes his tables with four pages of example banker’s accounts, demonstrating how his tables can be used.
Teorja i praktyka ekonomji.
First edition, very rare, of Heryng’s Theory and practice of economics. Zygmunt Heryng, Polish economist and political activist, was deeply concerned with economics as a science. He saw it as a systematic and conscious pursuit of efficiency in resource allocation in relation to targets. One of the categories he cherished was ‘social energies’, a concept he uses in relation to demand and supply, which he describes as ‘mental states’, or desires. Averse to the use of macro-data (average combinations and aggregate data) in the analysis of economic phenomena, Heryng believed that statistics should instead concentrate on presenting present figures and facts in the form of properly grouped raw material (micro-data), for a more precise identification of factors influencing people’s behaviour.