Guide to the papers in the John Hunter Walker collection, 1911-1953 /

Mode of access: Internet.

The nomenclature, and expositor of the English language : in which the meaning of each word is clearly explained, and the orthoepy of every syllable accurately pointed out, according to John Walker's pronouncing dictionary, compiled for the use of schools in the United States and Great Britain /

Reference: Not in Rosenbach.

Walker's critical pronouncing dictionary, and expositor of the English language. Abridged for the use of schools. To which is annexed, an abridgment of Walker's key to the pronunciation of Greek, Latin, and scripture proper names / by John Walker.

Mode of access: Internet.

Walker Brothers Quarries Limited fonds, 1975, 1980-1981, 1984, 1987-1989

Serving the Niagara and surrounding areas for over 120 years, Walker Industries has made its impact not only commercially, but also culturally. Beginning in 1875 with the erection of a stone sawing mill on a property John Walker purchased from the Welland Canal Loan Company. One of the first projects Walker cut stone for was the Merritton Town Hall. In 1882 the business expanded to include Walkers children, changing the name to Walker & Sons. Eventually in 1887 the two eldest sons took control of the business operation and their partnership changed the company’s name to Walker Brothers, the same year the company began operating its first quarry. The quarry was conveniently located alongside the 3rd Welland canal, offering easy access to Toronto and Hamilton. It was also close to the railway system which allowed immediate access to Thorold and Niagara Falls and later access to parts of Ontario and Quebec. The quarry supplied stone to build numerous halls and armouries across Ontario. A use was also found for the ‘waste products’ of cutting the limestone. Leftover stone chips were sent to paper mills, where stone was needed as part of the sulphite pulp process for making paper. Beginning to supply the Ontario Paper Company with stone in 1913, meant not only long, hard, work, but also more profit for the company. Before mechanization, most of the loading and unloading of the stone was done by hand, taking 19 man-hours to load an 18 yard railway car. Mechanization followed in 1947 when the plant became fully mechanized making the work easier and increasing production rates. In 1957 the company moved from its original location and opened the St. Catharines Crushed Stone Plant.

Murray's English reader: or, Pieces in prose and poetry, selected from the best writers... With a few preliminary observations on the principles of good reading, improved by the addition of a concordant and synonymising vocabulary... Walker's pronouncing key, which governs the vocabulary, is prefixed to this work...

Mode of access: Internet.

Johnson's dictionary of the English language. With Walker's pronunciation of all the difficult or doubtful words and marks to shew where to double the consonant in the participle.

Mode of access: Internet.

Review of Johnson's English dictionary, as improved by Todd and abridged by Chalmers; with Walker's Pronouncing dictionary combined; to which is added Walker's key to the classical pronunciation of Greek, Latin, and scripture proper names. Edited by J. E. Worcester.

Attributed to John Pickering in a list of his published writings in the Collections of the Massachusetts Historical Society, v.10, 3d series, Boston, 1849, p.224.

A critical pronouncing dictionary, and expositor of the English language. Abridged for the use of schools. To which is annexed, an abridgement of Walker's key to the pronunciation of Greek, Latin, and Scripture proper names.

1st edition of unabridged dictionary, London, 1791.

Walker's pronouncing dictionary of the English language. Abridged for the use of schools, containing ... principles of English pronunciation with the proper names that occur in the sacred Scriptures; to which is ... added a selection of geographical proper names and derivatives.

Mode of access: Internet.

Walker's pronouncing dictionary of the English language : abridged for the use of schools : containing a compendium of the principles of English pronunciation with the proper names ...

Mode of access: Internet.

Walker's pronouncing dictionary of the English languge : abridged for the use of schools : containing a compendium of the principles of English pronunciation with proper names that occur in the sacred scriptures : to which is likewise added, a selection of geographical proper names and derivatives.

Mode of access: Internet.

Walker's critical pronouncing dictionary, and expositor of the English language ; abridged for the use of schools ; to which is annexed, an abridgment of Walker's key to the pronunciation of Greek, Latin, and scripture proper names.

Mode of access: Internet.

Structure and function of sedoheptulose-7-phosphate isomerase, a critical enzyme for lipopolysaccharide biosynthesis and a target for antibiotic adjuvants

The barrier imposed by lipopolysaccharide (LPS) in the outer membrane of Gram-negative bacteria presents a significant challenge in treatment of these organisms with otherwise effective hydrophobic antibiotics. The absence of L-glycero-D-manno-heptose in the LPS molecule is associated with a dramatically increased bacterial susceptibility to hydrophobic antibiotics and thus enzymes in the ADP-heptose biosynthesis pathway are of significant interest. GmhA catalyzes the isomerization of D-sedoheptulose 7-phosphate into D-glycero-D-manno-heptose 7-phosphate, the first committed step in the formation of ADP-heptose. Here we report structures of GmhA from Escherichia coli and Pseudomonas aeruginosa in apo, substrate, and product-bound forms, which together suggest that GmhA adopts two distinct conformations during isomerization through reorganization of quaternary structure. Biochemical characterization of GmhA mutants, combined with in vivo analysis of LPS biosynthesis and novobiocin susceptibility, identifies key catalytic residues. We postulate GmhA acts through an enediol-intermediate isomerase mechanism.

Critical pronouncing dictionary and expositor of the english language; in which the meaning of every word is explained, and the sound of every syllable distinctly shown...

UANL