Library: Search Results

Search Collections with Keywords or Browse Collections using the Topic List for a guided view.

Results:

KEYWORDS: SCIENCE, HEALTH & TECHNOLOGY

Results: 111 - 120 of 407 total   Next

View:

Date Format Image Collection
1897 Pamphlet    Document
April 1897 Article    Document
September 1899 Article    Document
October 12, 1899 Article    Document
October 12, 1899 Engraving  Desk for working on punch cards. Visual Still
October 12, 1899 Engraving  Man sitting at desk receiving sorted punch cards, Visual Still
October 12, 1899 Engraving  A mechanism for counting, a numbered dial on front. Visual Still
October 12, 1899 Engraving  Mechanism with punch on a lever. Visual Still
October 12, 1899 Engraving  Mechanism for punching cards on table. Visual Still
circa 1900 Chart  Alexander Melville Bell Visible Speech as depicted by pictorial drawings representing different vocalizations. Visual Still
Print this page