An application of cell-cluster theory to a rare gas crystal /|n[by] K. Westera. - 260 St. Catharines [Ont.] : Dept. of Physics, Brock University,

The Lennard-Jones Devonshire 1 (LJD) single particle theory for liquids is extended and applied to the anharmonic solid in a high temperature limit. The exact free energy for the crystal is expressed as a convergent series of terms involving larger and larger sets of contiguous particles called cell-clusters. The motions of all the particles within cell-clusters are correlated to each other and lead to non-trivial integrals of orders 3, 6, 9, ... 3N. For the first time the six dimensional integral has been calculated to high accuracy using a Lennard-Jones (6-12) pair interaction between nearest neighbours only for the f.c.c. lattice. The thermodynamic properties predicted by this model agree well with experimental results for solid Xenon.

The diffusion of Co⠶溩 Zrâ â Tiâ â alloy /|nS. Kumar. -- 260 St Catharines [Ont.] : Dept. of Physics, Brock University,

The diffusion of Co60 in the body centered cubic beta phase of a ZrSOTi SO alloy has been studied at 900°, 1200°, and 1440°C. The results confirm earlier unpublished data obtained by Kidson17 • The temperature dependence of the diffusion coefficient is unusual and suggests that at least two and possibly three mechanisms may be operative Annealing of the specimen in the high B.C.C. region prior to the deposition of the tracer results in a large reduction in the diffusion coefficient. The possible significance of this effect is discussed in terms of rapid transport along dislocation network.

Crown timber regulations

Crown timber regulations which include: 2 double-sided printed pages issued by the Department of Crown Lands (2 copies). Included with this are 3 printed slips of paper. 2 of these are Order and Regulations by S. Richards, Commissioner of Crown Lands, dated May 28, 1869 and 1 is a notice of sale of timber berths dated Aug.1, 1872 by Richard Wm. Scott, commissioner, 1869, 1872.

Printed Blank by which John Brown Cullen solemnly declares that he is experienced in the art of measuring and culling timber

Printed blank by which John Brown Cullen solemnly declares that he is experienced in the art of measuring and culling timber. He states that he is entering into the service of Burton and Bro. of Barrie He will make out the specification of the timber in berths 192 and 198 and submit his findings to Burton and Brother, Oct. 22, 1877.

Declaration from John Brown, culler who states that there are 1167 pieces which equal 75704 cubic feet of timber to be culled

Declaration from John Brown, culler who states that there are 1167 pieces which equal 75704 cubic feet of timber to be culled, April 9, 1878.

Chart of bill of timber in bridges, culverts, cattle-guard and roadways, signed by S.D. Woodruff

Chart of bill of timber in bridges, culverts, cattle-guard and roadways, signed by S.D. Woodruff, Oct. 18, 1855.

List of [timber railway] piles delivered and driven

List of [timber railway] piles delivered and driven (1 page, handwritten). This is signed by Alex Morrison, July 1856.

Chart of the bill of timber for the railway bridge near Hurst’s, signed by S.D. Woodruff

Chart of the bill of timber for the railway bridge near Hurst’s, signed by S.D. Woodruff, Oct. 15, 1855.

Letter to S.D. Woodruff stating the total quantity of timber plank in the Port Robinson Bridge at Chippawa

Letter to S.D. Woodruff stating the total quantity of timber plank in the Port Robinson Bridge at Chippawa. This is signed by Fred Holmes, Oct. 6, 1857.

Letter (unsigned) to George H. Gillespie regarding Col. Clark’s proposal regarding timber in Long Point

Letter (unsigned) to George H. Gillespie regarding Col. Clark’s proposal regarding timber in Long Point. The writer [S.D. Woodruff] makes the argument that the point was purchased as a sporting preserve so it is desirable not to take the timber off the land, Aug. 5, 1868.

Letter to S.D. Woodruff from George H. Gillespie stating that Col. Clark has withdrawn his proposal about timber on the point

Letter to S.D. Woodruff from George H. Gillespie stating that Col. Clark has withdrawn his proposal about timber on the point. “Please send your views”, Aug. 10, 1868.

County of Welland estimate (copy) of work done on the main drain, and cleaning of fallen timber by Andrew Mains, signed by S.D. Woodruff

County of Welland estimate (copy) of work done on the main drain, and cleaning of fallen timber by Andrew Mains, signed by S.D. Woodruff. Estimate no.1, Oct., 1856.