Materials on the reconstruction of the water supply of the city of St. Petersburg.[Issue].Research on Lake Ladoga

Materials on the reconstruction of the water supply of the city of St. Petersburg.- St. Petersburg: St. Petersburg.City type., [1906-1907].-.1. Territory (collection).Electronic copy source: PBOriginal storage location: SZ UGMS[Issue]: Research on Lake Ladoga.G. -1906. -[2], 145-167 p.: table .. -Content: 1. Report L.A.Yachevsky - February 4, 1906 on the study of the phenomenon of bottom ice.2. Report I.B.Spindler - August 31, 1906 3. Report of Professor S.V.Shidlovsky - August 31, 1906 4. Tables of water tests of Lake Ladoga - winter period (December, January, February and March 1906).- adj.To the "Izvestia of the St. Petersburg City Duma" No. 9. - Ex.: without region..1. Territory (collection).Electronic copy source: PBOriginal storage location: SZ UGMS