1906 he was appointed by the Dominion Government, under the Public Health Department, Inspector of all the doctors employed on Public Works, from the Red River to the Pacific Ocean. In pursuance of the duties of this position, he had to travel distances of from 1,000 to 1,500 miles at a trip, ford rivers, make his own trail over prairies, sleep in a tent wherever night overtook him, in that great lone land. In the winter of 1907, he sent in his resignation, and in the spring of 1908, inspected and estimated the timber on the Dokis Indian Reserve, Lake Nipissing. The pine timber on this Reserve was sold by the Government at Ottawa in June, and the doctor bought one of the limits, and in the fall had buildings, appliances, and materials complete for lumbering operations. During the winter he took out, and in the spring sent, 2,300 pieces of board timber, for the English market, by way of Lake Nipissing to Callender, thence by rail to Kingston, and rafting it thence to Quebec. He closed up this deal, and in 1910 went to California, visiting by the way, the principal cities in the West. During the past 30 years, he has bought and sold large quantities of pine timber in Ontario, and prospected for and located mines in the Rainy River and Lake-of-the-Woods Districts, and explored almost every part of Northern Ontario mining and timber lands. Dr. Chamberlain married, in 1862, Annetta, third daughter of Arza Parish, Esq., merchant, Athens. He has one son, W. P., born at Morrisburg on May 19, 1863, and one daughter, also born at Morrisburg, March 8, 1871. The Dr. and Mrs. Chamberlain celebrated their golden wedding on July 3, 1912. They had resided in Toronto since 1890, but the lure of his profession became too strong, and so the doctor has improved and embellished his beautiful residence in Morrisburg, fitted it up with all the latest devices and scientific appliances, and is conducting most successfully a Sanatorium for the relief and cure of suffering humanity. * * * * *