Source: Systems Thinking, Systems Practice, 1981, p. 152 as cited in: R.L. McCown (2001) "Learning to bridge the gap between science-based decision support and the practice of farming". In: Aust. J. Agric. Res., Vol 52, p. 560-561
“There are many cases of these algebras which may obviously be combined into natural classes, but the consideration of this portion of the subject will be reserved to subsequent researches.”
"Natural Classification", p. 119.
Linear Associative Algebra (1882)
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Benjamin Peirce 24
American mathematician 1809–1880Related quotes

That these are the laws employed in the demonstration of the principal theorems in Algebra, a slight examination of the processes will easily shew ; but they are not confined to symbols of numbers ; they apply also to the symbol used to denote differentiation.
p. 237 http://books.google.com/books?id=8lQ7AQAAIAAJ&pg=PA237; Highlighted section cited in: George Boole " Mr Boole on a General Method in Analysis http://books.google.com/books?pg=PA225-IA15&id=aGwOAAAAIAAJ&hl," Philosophical Transactions, Vol. 134 (1844), p. 225; Other section (partly) cited in: James Gasser (2000) A Boole Anthology: Recent and Classical Studies in the Logic of George Boole,, p. 52
Examples of the processes of the differential and integral calculus, (1841)

Source: 1850s, An Investigation of the Laws of Thought (1854), p. 6; As cited in: Leandro N. De Castro, Fernando J. Von Zuben, Recent Developments in Biologically Inspired Computing, Idea Group Inc (IGI), 2005 p. 236
Can a Doctor Be a Humanist? (1984).

“The portions of a woman which appeal to man's depravity
Are constructed with considerable care.”
"Lines on a Book Borrowed from the Ship's Doctor", A. P. H.: His Life and Times (1970).

§ 3.
Linear Associative Algebra (1882)
Context: All relations are either qualitative or quantitative. Qualitative relations can be considered by themselves without regard to quantity. The algebra of such enquiries may be called logical algebra, of which a fine example is given by Boole.
Quantitative relations may also be considered by themselves without regard to quality. They belong to arithmetic, and the corresponding algebra is the common or arithmetical algebra.
In all other algebras both relations must be combined, and the algebra must conform to the character of the relations.

Source: An approach to general systems theory (1969), p. 40.

Small Houses: Their Economic Design and Construction (1922)
Context: Economy in building consists in the aggregate of a great number of savings, which when considered separately may seem trivial, but when combined are important. The list of those here provided for... may be divided into classes as follows:<!-- Introduction

Source: Law and Authority (1886), III

Source: History of Mathematics (1925) Vol.2, p. 384; Ch. 6: Algebra