Collection: Science and Technology

The Insect Book by Leland O. Howard

Biology of Emotions: New Understanding Derived from Biological Multidisciplinary Investigation; First Electrophysiological Measurements by Edmund Jacobson

The Government Collection of Original Views of the World's Columbian Exposition Secured by the Official Government Photographer for Preservation in the Archives at Washington

Fig. 2. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 92 and 93. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 42 and 43. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 53 and 54. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 57 and 58. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Fig. 95. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 30 and 31. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 22A and 22B. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 47 and 48. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 131 and 132. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 120 and 121. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 49 and 50. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel

Figs. 116 and 117. Print from “The Treatment of Tabetic Ataxia by Means of Systematic Exercise” by Dr. H. S. Frenkel