Map (printed) of the Shipman Tract in the Town of St. Catharines

Map (printed) of the Shipman Tract in the Town of St. Catharines, 38 cm. x 48 cm., April 1846.

The St. Catharines Journal, February 16, 1844

The St. Catharines Journal. The name P. Bradt is written in ink on the front page, February 16, 1844.

The Evening Journal, St. Catharines, Ontario, May 8, 1883

The Evening Journal, St. Catharines, Ontario, May 8, 1883.

The Evening Journal, St. Catharines, Ontario, August 16, 1900

The Evening Journal, St. Catharines, Ontario, August 6, 1900.

The St. Catharines Standard supplement, November 28, 1974

The St. Catharines Standard supplement featuring a Tribute to the Father of Transportation, the Honorable William Hamilton Merritt, November 28, 1974.

Second Welland Canal Lock 2

Negative of second Welland Canal at Lock 2.

Second Welland Canal Lock 3

Negative of second Welland Canal at Lock 3.

Second Welland Canal Lock 3

Negative of second Welland Canal at Lock 3.

Second Welland Canal Lock 9

Negative of second Welland Canal at Lock 9.

Second Welland Canal Lock 22

Negative of second Welland Canal at Lock 22. There is a building with a sign that reads "Artificial Stone Builder's Supply Co."

Linear Low Density Polyethylene-Biodegradability Using Bacteria from Marine Benthic Environment and Photodegradability Using Ultraviolet Light

Various compositions of linear low density polyethylene(LLDPE) containing bio-filler(either starch or dextrin)of various particle sizes were prepared.The mechanical,thermal,FTIR,morphological(SEM),water absorption and melt flow(MFI) studies were carried out.Biodegradability of the compositions were determined using a shake culture flask containing amylase producing bacteria(vibrios),which were isolated from marine benthic environment and by soil burial test. The effect of low quantities of metal oxides and metal stearate as pro-oxidants in LLDPE and in the LLDPE-biofiller compositions was established by exposing the samples to ultraviolet light.The combination of bio-filler and a pro-oxidant improves the degradation of linear low density polyethylene.The maleation of LLDPE improves the compatibility of the c blend components and thepro-oxidants enhance the photodegradability of the compatibilised blends.The responsibility studies on the partially biodegradable LLDPE containing bio-fillers and pro-oxidants suggest that the blends could be repeatedly reprocessed without deterioration in mechanical properties.