Search Results
-
Molecular Model Set for General Chemistry
- 1980s
Models kits, such as this one, are often found in laboratories and classrooms and are used to visualize the structure of chemical substances.
- Manufacturer Allyn and Bacon
- Subject Molecules--Models
-
HGS General Chemistry Molecular Model Set
- 1985 – 1989
Transparent plastic container with five interior compartments for multicolored plastic pieces. Instruction manual included.
Models kits, such as this one, are often found in laboratories and classrooms and are used to…
- Manufacturer Benjamin / Maruzen
- Subject Molecules--Models
-
Organichem Model Set
- 1970s
Small, multicolored plastic connectors and straws in small plastic bag.
Models kits, such as this one, are often found in laboratories and classrooms and are used to visualize the structure of chemical substances.
- Manufacturer Freeman, Cooper & Co.
- Subject Molecules--Models
-
Disc Molecular Models
- Undated
Rectangular grey cardboard box with white writing and colored disks on sides; box contains a cardboard separator that divides the inside into four compartments and an instruction booklet; the compartments contain a…
- Manufacturer W. A. Benjamin, Inc
- Subject Molecules--Models
-
Harshaw Crystal Model Kit
- Undated
Blue cardboard box containing three compartments; two compartments hold a number of black and white stone marbles; third compartment holds four brass rods, numerous glass spacers, and sheets of thin paper; box also…
- Manufacturer Harshaw Scientific, Division of the Harshaw Chemical Company
- Subject Molecules--Models
-
Sargent Molecular Model Kit
- 1955 – 1965
White cardboard box with blue writing; contains black, blue, yellow, red, and green spheres as well as wooden and metal connectors.
Models kits, such as this one, are often found in laboratories and classrooms and are…
- Manufacturer E.H. Sargent and Company
- Subject Molecules--Models
-
Set of Celluloid Billiard Balls in Wooden Box
- Circa 1880
Set of celluloid billiard balls with brown cue ball; balls are divided in bottom section of square wooden box by cardboard dividers.
- Subject Billiards, Celluloid, Plastics industry and trade
-
Zenith Royal Hearing Aid
- 1950s
Gold colored plastic box with a black circular grate and gold steel clips on the front; on the left top corner is a black plastic tone dial and on the right top corner is the volume dial; on the right side is a black…
-
Vacuum-Trockenapparat
- Vacuum Drying Apparatus
- 1902
Figure 2560 depicts a vacuum drying apparatus for explosive substances, and figure 2561 show a vacuum drying oven made of wrought iron with lead sealing rings.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Vacuum-Apparate
- Vacuum Apparatus
- 1902
With metal boiler and distillation unit.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Configurations-Modelle; Sandbäder
- Configurations Models; Sandbaths
- 1902
Figures 2281 and 2282 depict models for chemical configuration, and figures 2283 and 2284 illustrate sandbaths.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Vacuum-Apparate
- Vacuum Apparatus
- 1902
With porcelain bowls of 1-2 and 5-6 liter capacities and water air pump with check valve.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Oefen
- Furnaces
- 1902
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments, Furnaces
-
Retorten
- Retorts
- 1902
Glass and copper retorts. The one depicted in figure 2245 is made of heavy glass for brown coal distillation.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Gas-retorts, Scientific apparatus and instruments
-
Motor
- 1902
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments, Motors
-
Moor-Untersuchungs-Apparate
- 1902
Apparatus for the determination of free humic acid in a bog.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Soils--Humic acid content, Scientific apparatus and instruments
-
Apparate für Molekulargewichts-Bestimmung
- Apparatus for Molecular Weight Determination
- 1902
Figure 1969 depicts an apparatus for determining boiling point, and figure 1970 shows an apparatus for determining molecular weight according to Beckmann, with tripod and movement device according to Gilson.
-
Apparate für Molekulargewichts-Bestimmung
- Apparatus for Molecular Weight Determination
- 1902
Figures 1966 and 1967 depict apparatuses for determining boiling point, according to Beckmann. Figure 1968 shows an apparatus for determining the freezing point with an electromagnetic resting device.
-
Massanalytischer Apparate
- 1902
Saturation apparatus.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Massanalytischer Apparate
- 1902
Apparatus for the continuous testing of feedwater for sugar content with alpha-naphthol.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Massanalytischer Apparate
- 1902
Device for the determination of sulfur dioxide in sulfuric acid gas from Alois Kreidl in Prague.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Massanalytischer Apparate
- 1902
Apparatus according to Hodek for the rapid determination of the lime content of juices in sugar factories.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Luftpumpen
- Air Pumps
- 1902
Piston air pumps according to Gay-Lussac.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Luftpumpen
- Air Pumps
- 1902
Figures 1858 and 1859 depict pumps where the tap control is either operated by hand or is a self-acting control. The two-stage pump in figure 1860 is outfitted with Babinet's cock, and is suitable for faster working.
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
-
Kjeldahl's Methode [Method]
- 1902
Developed by Johan Kjeldahl in 1883, the method is used for the determination of nitrogen and carbon in organic compounds from the oxidation of substances like sulfuric acid. The apparatus shown in figure 1606 is…
- Contributor Marpmann, Georg Friedrich Adolf, 1849-1911
- Publisher Schimmelwitz, P.
- Subject Scientific apparatus and instruments
