An analysis of the photoelectron and Rydberg states of formaldehyde /|nby Carol R. Lessard. -- 260 St. Catharines [Ont.] : Dept. of Chemistry, Brock University,

Although it is generally accepted that Rydberg orbitals are very large and diffuse, and that electron promotion to a Rydberg orbital is not too different from ionization of the molecule, analysis of the two types of transitions proves otherwise. The photoelectron spectrum of the 2B2 (n) ion has very little vibrational structure attached to the origin band; on the other hand, several of the Rydberg transitions which involve the promotion of the n(bZ) electron exhibit a great deal of vibrational activity. In particular, the members of the n=3 Rydberg\ series interact with and perturb each other through pseudo-Jahn-Teller vibronic coupling. The vacuum ultraviolet spectrum contains a number of features which are difficult to explain, and two unusually sharp bands can only be identified as representing some form of electron promotion in formaldehyde.

Calculation of the optical conductivity for the Anderson impurity model using the slave boson technique

The optical conductivity of the Anderson impurity mode l has been calculated by emp l oying the slave boson technique and an expansion in powers of l i N, where N is the d egeneracy o f the f electron level . This method has been used to find the effective mass of the conduction electrons for temperatures above and below the Kondo tempera ture. For low temperatures, the mass enhancement is f ound to be large while a t high t emperatures, the mass enhancement is sma ll. The conductivity i s f ound to be Drude like with frequency dependent effective mass and scattering time for low independent effective mass and temperatures and scattering time f requency for high t emperatures. The behavior of both the effective mass and the conductivity is in qualitative agreement with experimental r esul t s .

Photograph of Rev. and Mrs. Wright and Family signed to Mrs. Mary Bell [n.d.]

An undated black and white studio portrait of Rev. and Mrs. Wright and family presented to Mrs. Mary Bell. The photograph is mounted in a decorative board frame and bears the handwritten inscription "Mrs. Mary Bell from Mrs. and Rev. Wright" on the reverse. This photograph was included in memorabilia owned by the Richard Bell family of St. Catharines, Ontario.

Rev. Henry Wilkinson

A photograph of Rev. Henry Wilkinson, d. August 14, 1862 (58 years). This photograph is part of a large memorial Album of Carte des Visites belonging to George H. Cornish.

Photograph - Shequaqknind. [This was the Mohawk name given to Rev. Nelles)

A photograph taken by Park & Co. Brantford of a male identified as Shequaqknind. [This was the Mohawk name given to Rev. Nelles], taken by Park & Co., Brantford] Dated May 24th/84. Reverse of photograph reads: "Artists and Photographers 110 Colborne Street, Brantford, Ont. Further orders can be obtained at any time. Enlargement of photographs in either oil or water colors."

Indenture between Gilbert Anderson, Phoebe Anderson and John Picard

Indenture of bargain and sale between Gilbert Anderson the younger of the Township of Niagara and Phoebe Anderson (his wife) and John Picard of the Township of Niagara. The instrument no. is 6268. April 14, 1855.

Letter to Joseph A. Woodruff from Mr. Anderson

Letter to Joseph A. Woodruff from Mr. Anderson. He asks if Mr. Woodruff was able to bear some pressure on the judge to settle the old claim between Milroy and Price. This is accompanied by an envelope, Aug. 24, 1865.

Receipt from Adam, Meldrum and Anderson Dry Goods and Carpets

Receipt from Adam, Meldrum and Anderson Dry Goods and Carpets, Buffalo, New York for curtains, materials and hooks, Sept. 6, 1886.

Receipt from Adam, Meldrum and Anderson, Buffalo, New York

Receipt from Adam, Meldrum and Anderson, Buffalo, New York for sateen, May 17, 1887.