Letter to S.D. Woodruff regarding a resolution passed on May 17, 1856 by the Board of Directors of the Port Robinson and Thorold Macadamized Road Committee

Letter to S.D. Woodruff regarding a resolution passed on May 17, 1856 by the Board of Directors of the Port Robinson and Thorold Macadamized Road Committee This is signed by Duncan McFarland, president, May 27, 1856.

Letter to S.D. Woodruff regarding resolution #5 of the Board of Directors. Mr. Woodruff is requested to take steps to ensure the early completion of the Port Dalhousie and Thorold macadamized road

Letter to S.D. Woodruff regarding resolution #5 of the Board of Directors. Mr. Woodruff is requested to take steps to ensure the early completion of the Port Dalhousie and Thorold macadamized road. This is signed by James McCoppen, president. The letter is stained and worn torn in spots. This does not affect the text, July 11, 1857.

Extract from the minutes of the board of directors of the Long Point Company

Extract from the minutes of the board of directors of the Long Point Company (3 pages, printed). This includes private instructions for Alfred March, steward at Long Point. This has the names J.I. Mackenzie, secretary-treasurer and Joseph A. Woodruff, president on the bottom of the page, Feb. 25, 1882.

Letter of notification to S.D. Woodruff from George H. Gillespie that a meeting of the Board of Directors has been called

Letter of notification to S.D. Woodruff from George H. Gillespie that a meeting of the Board of Directors has been called, Oct. 20, 1869.

Bond between John Hammell of the Township of Dumphries, Halton County to William Dickson of Niagara

Bond (1 page, printed) between John Hammell of the Township of Dumphries, Halton County to William Dickson of Niagara for 117 pounds, 10 shillings and 10 pence, Sept. 21, 1824.

Map (printed) of the state of Missouri issued by the State Board of Immigration

Map (printed) of the state of Missouri issued by the State Board of Immigration (50 cm. x 58 cm.), n.d.

Causes of plasma flow bursts and dayside auroral transients: An evaluation of two models Invoking reconnection pulses and changes in the Y component of the magnetosheath field

Longitudinal flow bursts observed by the European Incoherent Scatter (EISCAT) radar, in association with dayside auroral transients observed from Svalbard, have been interpreted as resulting from pulses of enhanced reconnection at the dayside magnetopause. However, an alternative model has recently been proposed for a steady rate of magnetopause reconnection, in which the bursts of longitudinal flow are due to increases in the field line curvature force, associated with the By component of the magnetosheath field. We here evaluate these two models, using observations on January 20, 1990, by EISCAT and a 630-nm all-sky camera at Ny Ålesund. For both models, we predict the behavior of both the dayside flows and the 630-nm emissions on newly opened field lines. It is shown that the signatures of steady reconnection and magnetosheath By changes could possibly resemble the observed 630-nm auroral events, but only for certain locations of the observing site, relative to the ionospheric projection of the reconnection X line: however, in such cases, the flow bursts would be seen between the 630-nm transients and not within them. On the other hand, the model of reconnection rate pulses predicts that the flows will be enhanced within each 630-nm transient auroral event. The observations on January 20, 1990, are shown to be consistent with the model of enhanced reconnection rate pulses over a background level and inconsistent with the effects of periodic enhancements of the magnitude of the magnetosheath By component. We estimate that the reconnection rate within the pulses would have to be at least an order of magnitude larger than the background level between the pulses.