Ontario
![Cold northwesterly wind over the [[Great Lakes](https://upload.wikimedia.org/wikipedia/commons/c/c6/Lake_Effect_Snow_on_Earth.jpg)
Ontario is bordered by the province of Manitoba to the west, Hudson Bay and James Bay to the north, and Quebec to the east and northeast. To the south, it is bordered by the U.S. states of (from west to east) Minnesota, Michigan, Ohio, Pennsylvania, and New York. Almost all of Ontario's border with the United States follows rivers and lakes: from the westerly Lake of the Woods, eastward along the major rivers and lakes of the Great Lakes/Saint Lawrence River drainage system. There is only about of actual land border, made up of portages including Height of Land Portage on the Minnesota border.
The great majority of Ontario's population and arable land is in Southern Ontario, and while agriculture remains a significant industry, the region's economy depends highly on manufacturing. In contrast, Northern Ontario is sparsely populated with cold winters and heavy forestation, with mining and forestry making up the region's major industries. Provided by Wikipedia
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221by Nikol'skii,A. P.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1957
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222by Portniagin,E. A.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1966
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223Contributors: “...DEFENCE SCIENTIFIC INFORMATION SERVICE OTTAWA (ONTARIO)...”
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224by Burkhanov,V. F.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1957
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225by Panov,D. G.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1955
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226by Zubov, N. N.Contributors: “...DIRECTOR SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1958
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227by Pyankov,V. P.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1965
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228by Timofeev,V. T.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1960
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229by VAN Wijk,M. C.Contributors: “...NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO)...”
Published 1970
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230Contributors: “...DEFENCE SCIENTIFIC INFORMATION SERVICE OTTAWA (ONTARIO)...”
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231by Hakkel,Y. Y.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1958
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232by Gaigerov,S. S.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1958
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233by Timofeev,V. T.Contributors: “...DEFENCE SCIENTIFIC INFORMATION SERVICE OTTAWA (ONTARIO)...”
Published 1969
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234Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
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235Contributors: “...NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO)...”
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236by Cherepanov, N. V.Contributors: “...DIRECTOR SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1966
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237by Krasovaskii,V. I.Contributors: “...DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1958
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238by Puminov, A. P.Contributors: “...DIRECTOR SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1967
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240by Antonov, V. S.Contributors: “...DIRECTOR SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)...”
Published 1968
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