An illustrated lecture by Mr. Edward Balch Barr on "Dr. Grenfell and the Deep Sea Mission" will be given in the Living Room of the Union tomorrow at 8 o'clock. Mr. Barr has just returned from a six month's trip in Labrador and North Newfoundland, where he worked with Dr. Grenfell. The particular purpose of Mr. Barr's expedition was a search for young caribou to be taken alive in the hope that they might be domesticated and so become of use to the summer, he covered hundreds of miles of seacoast and penetrated far into the interior of the country, coming in close contact with the natives.