The professional papers of Hans Albert Einstein. Materials include research notes and data, maps, correspondence, and reprints. Topics are primarily river sedimentation and flow.

The collection consists of reports and papers on the subjects of pumps, turbines, fans, metering and flow (hydraulics).

The collection consists of correspondence, reports, and documents, concerning sedimentation, flow of water in channels, rivers, flood control, waves and surge, beach erosion, dams and related projects, pipes, hydraulic models, and pumps.

The collection consists of symposia, reports, and reprints relating to geothermal resources, fluid flow, and heat transport.

The collection consists of correspondence, reports, notes, and photographs, relating to pipelines, aqueducts, irrigation systems, culverts, flow of water and capacity of pipes, conduits and sewers, spillways, municipal water supply, and mapping techniques for Rio Grande Joint Investigation.

The collection consists of laboratory log-books, manuscripts, and reports of investigations: flow of water; pipe and nozzle tests; velocity distribution; hydraulic jump; bed load; ram and water hammer; and pump tests (1938-1950). Collection also includes 120 machinery trade company catalogs (valves, water wheels, drills, culverts and gates, turbines, pumps, pile driving machinery, and wooden and metal pipes), 1910-1950.