A Dynamic Record Of The Heart Beat.

The Relative Effects Of Individual Competition And Group Competition As Motivational Factors In Achievement In Arithmetic At Three Levels Of Intelligence.

Part I. The Differential Action Of Soft X Ray On Tubifex Tubifex. Part Ii. The Construction And Operation Of An X Ray Intensity Measuring Device.

A History Of Chalkis To 338 B.C.

Hematoporphyrin, An Artificial Proteolytic Enzyme.

The Effect Of Organic Bases Upon The Extent And Mechanism Of The Reducing Action Of Sodium Methylate On (A) Nitrobenzene And (B) Azoxybenzene.

Study Of Metaplasia In The Uterus Of The Rat.

Studies On Chemical Methods For The Diagnosis And Treatment Of Carcinoma Of The Stomach.

Biophysical Interactions Of X Rays, Antibiotics, Plant Pathogens, And Plants.