Students inflating pilot balloon. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-2
Title
Caltech-Armed Forces meteorology training course
Abstract
Students inflating pilot balloon and leveling theodolite. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-3
Title
Caltech-Armed Forces meteorology training course
Abstract
Observer and recorder waiting for buzzer signal to release pilot balloon. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-4
Title
Caltech-Armed Forces meteorology training course
Abstract
Beginning of pilot balloon run. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-5
Title
Caltech-Armed Forces meteorology training course
Abstract
Students observing and recording pilot balloon. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-6
Title
Caltech-Armed Forces meteorology training course
Abstract
Practice in keeping theodolite cross-hair centered on pilot balloon. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-7
Title
Caltech-Armed Forces meteorology training course
Abstract
Practice of following and reading of vertical and horizontal angles of theodolite. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-8
Title
Caltech-Armed Forces meteorology training course
Abstract
Observing pilot balloon. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-9
Title
Caltech-Armed Forces meteorology training course
Abstract
Practice in use of clinometer for measuring ceiling of clouds. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-11
Title
Caltech-Armed Forces meteorology training course
Abstract
Demonstration in principles of ceiling projector. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-10
Title
Caltech-Armed Forces meteorology training course
Abstract
Equipment for cloud observations and recording. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-12
Title
Caltech-Armed Forces meteorology training course
Abstract
Gimbal nephoscope for cloud observations. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-13
Title
Caltech-Armed Forces meteorology training course
Abstract
Polarus and topographical chart used for determining local points for visibility check. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-14
Title
Caltech-Armed Forces meteorology training course
Abstract
Sunshine duration electrical transmitter. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-15
Title
Caltech-Armed Forces meteorology training course
Abstract
Student measuring amount of precipitation in eight inch rain gauge. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-16
Title
Caltech-Armed Forces meteorology training course
Abstract
Reading of sling psychrometer by student. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-17
Title
Caltech-Armed Forces meteorology training course
Abstract
Venturi tube aspirated psychrometer used by student. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-18
Title
Caltech-Armed Forces meteorology training course
Abstract
Top deck of Caltech meteorological station. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-19
Title
Caltech-Armed Forces meteorology training course
Abstract
Interior of Caltech meteorological station. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
ID number
10.43.1-20
Title
Caltech-Armed Forces meteorology training course
Abstract
Interior of Caltech meteorological station. Photograph from the portfolio compiled to acquaint fully “the Army Air Corps, the Navy and the Weather Bureau with the curriculum offered to students in Government sponsored courses at the California Institute of Technology.” (Historical File A12.4)
