Letter to S.D. Woodruff from John I. Mackenzie regarding 1 share of the Long Point Company transferred from Alexander McInnes and 2 shares transferred from E.C. Clark

Letter to S.D. Woodruff from John I. Mackenzie regarding 1 share of the Long Point Company transferred from Alexander McInnes and 2 shares transferred from E.C. Clark. The shares were transferred to John I Mackenzie, Sept. 6, 1870.

Mackenzie Chown

Mackenzie Chown was the former mayor of St. Catharines, chairman of the Brock's Board of Trustees, and chairman of the fund raising committee for a new science laboratory building to be added to the Complex.

Mackenzie Chown B Block

Mackenzie Chown Complex in the background and the path running next to it.

Mackenzie Chown Overhead

Overhead view of the Mackenzie Chown Complex.

Mackenzie Chown Path

Path running next to the Mackenzie Chown Complex.

Mackenzie Chown Path

View of the Complex and the path running along it from the east.

Mackenzie Chown Exterior

Exterior view of the complex and surrounding environment.

Mackenzie Chown Moduel

One of the so called diamond shaped modules of the Mackenzie Chown Complex.

Mackenzie Chown Framework

View from the northwest near the edge of the Thistle Complex.

Mackenzie Chown Complex

View of the entire Mackenzie Chown complex after the Science Complex addition.

Mackenzie Chown Complex Sign

The Mackenzie Chown Complex in the background and its sign in the foreground.

Tower and Mackenzie Chown

The Tower and part of Mackenzie Chown's A Block as viewed from the south.

Middle Ordovician (Whiterockian-Chazyan) trilobites from the Sunblood Formation, District of Mackenzie

The Middle Ordovician Sunblood Formation in the South Nahanni River area, District of Mackenzie, comprises mainly limestones and dolostones of intertidal and shallow subtidal origin as indicated by the presence of desiccation polygons, fenestral fabric, and oncolites. The study of well preserved, silicified trilobites from low diversity, Bathyurus-dominated, Nearshore Biofacies faunas of Whiterockian and Chazyan age collected in six stratigraphic sections through the Sunblood Formation permits the recognition of three new Whiterockian zones, and two previously established Chazyan zones. The Bathyurus mackenziensis, Bathyurus sunbloodensis, and Bathyurus margareti zones (Whiterockian), together with the Bathyurus nevadensis and Bathyurus granu/osus zones (Chazyan) represent the Nearshore Biofacies components of a dual biostratigraphic scheme that considers both temporal and spatial distribution patterns, and are compositionally distinct from faunas in correlative strata around North America that represent other biofacies. Twenty-six species belonging to eighteen genera are described and illustrated. Ludvigsenella ellipsepyga is established as a new bathyurine genus, in addition to four new species of Bathyurus : Bathyurus mackenziensis, Bathyurus sunbloodensis, Bathyurus margareti and Bathyurus acanthopyga. Other genera present are: Basilicus, Isote/us, ///aenus, Bumastoides, Fail/eana, Phorocepha/a,Ceraurinella, Acanthoparypha, Xystocrania, Cydonocephalus, Ectenonotus, Pseudomera, Encrinuroides, Calyptaulax, Amphilichas and Hemiarges.