Pay roll voucher #18 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division approved by F. Shanly, chief engineer and F.A. Doyle assistant engineer, May 31, 1857

Pay roll voucher #18 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division approved by F. Shanly, chief engineer and F.A. Doyle assistant engineer, May 31, 1857.

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension for W.G. Thompson for the Northern Division. There are attached notes from the Welland Railway Company to John Mitchell for putting up shelves; to William Waud, staff; and to William Martin to repair the office (copy), June 10, 1857

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension for W.G. Thompson for the Northern Division. There are attached notes from the Welland Railway Company to John Mitchell for putting up shelves; to William Waud, staff; and to William Martin to repair the office (copy), June 10, 1857.

Pay roll voucher #20 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Northern Division approved by F. Shanly, chief engineer and W.G. Thompson, assistant engineer (copy) June 1857

Pay roll voucher #20 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Northern Division approved by F. Shanly, chief engineer and W.G. Thompson, assistant engineer (copy) June 1857.

Pay roll voucher #21 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division approved by F. Shanly, chief engineer and Francis A. Doyle, assistant engineer (copy) June 29, 1857

Pay roll voucher #21 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division approved by F. Shanly, chief engineer and Francis A. Doyle, assistant engineer (copy) June 29, 1857.

Pay roll voucher #19 from the Port Dalhousie and Thorold Railway Extension, for the office approved by F. Shanly, chief engineer (copy), July 1, 1857

Pay roll voucher #19 from the Port Dalhousie and Thorold Railway Extension, for the office approved by F. Shanly, chief engineer (copy), July 1, 1857.

Pay roll voucher #26 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and Francis A. Doyle (copy), July 28, 1857

Pay roll voucher #26 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and Francis A. Doyle (copy), July 28, 1857.

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to Francis A. Doyle for fees at the Fonthill Registry Office (copy), July 28, 1857

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to Francis A. Doyle for fees at the Fonthill Registry Office (copy), July 28, 1857.

Pay roll voucher #24 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the office, for the month of July, 1857 approved by F. Shanly, chief engineer (copy), July 31, 1857

Pay roll voucher #24 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the office, for the month of July, 1857 approved by F. Shanly, chief engineer (copy), July 31, 1857.

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to W.G. Thompson regarding horse hire (copy), Jul. 30, 1857

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to W.G. Thompson regarding horse hire (copy), Jul. 30, 1857.

Pay roll voucher #25 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Northern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and W. G. Thompson (copy), July 30, 1857

Pay roll voucher #25 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Northern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and W. G. Thompson (copy), July 30, 1857.

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.

Note showing amount of work done on Port Dalhousie Road

Note showing amount of work done on Port Dalhousie Road, Sept. 21, 1854.

Chart of final estimate of work done between Port Dalhousie and lock no.2 by Robert Jobson

Chart of final estimate of work done between Port Dalhousie and lock no.2 by Robert Jobson, contractor. The work commenced Nov. 1846 and was finished April 1847 on sections A and B, July 1847.

Office at Port Dalhousie statement of trade upwards on the Welland Canal during the years, 1857-1861

Office at Port Dalhousie statement of trade upwards on the Welland Canal during the years (10 pages of hand drawn charts), 1857-1861.

Some ecological factors affecting the input and population level of total and faecal coliforms and salmonella in Twelve Mile Creek, Lake Ontario and sewage waters near St. Catharines, Ontario

Some Ecological Factors Affecting the Input and Population Levels of Total and Faecal Coliforms and Salmonella in Twelve Mile Creek, Lake Ontario and Sewage Waters Near St. Catharines, Ontario. Supervisor: Dr. M. Helder. The present study was undertaken to investigate the role of some ecological factors on sewage-Dorne bacteria in waters near St. Catharines, Ontario. Total and faecal coliform levels and the presence of Salmonella were monitored for a period of a year along with determination of temperature, pH, dissolved oxygen, total dissolved solids, nitrate N, total phosphate P and ammonium N. Bacteriological tests for coliform analysis were done according to APHA Standard Methods by the membrane filtration technique. The grab sampling technique was employed for all sampling. Four sample sites were chosen in the Port Dalhousie beach area to determine what bacteriological or physical relationship the sites had to each other. The sample sites chosen were the sewage inflow to and the effluent from the St. Catharines (Port Dalhousie) Pollution Control Plant, Twelve Mile Creek below the sewage outfall and Lake Ontario at the Lakeside Park beach. The sewage outfall was located in Twelve Mile Creek, approximately 80 meters from the creek junction with the beach and piers on Lake Ontario. Twelve Mile Creek normally carried a large volume of water from the WeIland Canal which was diverted through the DeCew Generating Station located on the Niagara Escarpment. An additional sample site, which was thought to be free of industrial wastes, was chosen at Twenty Mile Creek, also in the Niagara Region of Ontarioo 3 There were marked variations in bacterial numbers at each site and between each site, but trends to lower_numbers were noted from the sewage inflow to Lake Ontario. Better correlations were noted between total and faecal coliform population levels and total phosphate P and ammonium N in Twenty Mile Creek. Other correlations were observed for other sample stations, however, these results also appeared to be random in nature. Salmonella isolations occurred more frequently during the winter and spring months when water temperatures were minimal at all sample stations except the sewage inflow. The frequency of Salmonella isolations appeared to be related to increased levels of total and faecal coli forms in the sewage effluent. However, no clear relationships were established in the other sample stations. Due to the presence of Salmonella and high levels of total and faecal coliform indicator organisms, the sanitary quality of Lake Ontario and Twelve Mile Creek at the sample sites seemed to be impaired over the major portion of the study period.