,G52 



LEWELLYS F. BARKER 



In tetania inf antum, carpopedal spasms occur ; or they may be laryn- 

 gospasm or general convulsions (eclampsia inf antum). The diagnosis is 

 most easily made by the demonstration of galvanic (and especially of 

 anodic) hyperexcitability. 



I. ACCORDING TO AGE 



Intermittent Form; 



Persistent Form 



ACCORDING TO THE MONTH OF THE YEAR 



Fijr. 13. Diagrams of 80 cases of tetany observed in the Children's Clinic at 

 (Jni/, diirinjr the years 18W) to 1897. (After T. Escherich.) 



This tetany of sucklings does not seem to be limited geographically, as 

 is epidemic tetany, nor is it restricted to certain seasons. That it is more 

 prevalent during the "tetany months" in Graz is well shown in Fig 13. 

 Tetany in children is not common in summer, when summer diarrheas are 

 prevalent, and opportunity for autointoxication would seem to exist (Pot- 

 peschnigg). 



