116 J- Lindhard. 



left mammillary line. Action of heart regular; 1st sound clean; 

 2nd sound at apex, divided along the left margin of the sternum 

 and over the pulmonary orifice, somewhat hard and noisy. Pulse 

 60, strong, not quite regular in rhythm during the examination 

 (later the pulse was regular). 



Circumference of chest with deepest inspiration 1005 cm. 



— deepest expiration 92 



middle position 96 



Circumference of belly 85 



It seems clear from these investigations that the capacity of the 

 lungs has increased in both cases. The increase in the circumference 

 of the chest is 2*5 and 15 cm., and this change cannot be considered 

 as due to alteration in the walls of the thorax; neither of the men 

 had become fat, in both previously the musculature was well-devel- 

 oped, and there is no reason to believe that just the muscles in 

 question here have developed further during the journey. Again, 

 the other measurements have also altered and not to the same 

 extent. I consider it as certain, therefore, that the change in the 

 measurements corresponds to an alteration in the capacity of the 

 thorax. In one of the two men the difference between the maximum 

 and the minimum circumference has been reduced, in the other a 

 little increased; in both the circumference in the intermediate posi- 

 tion has been considerably increased. 



In both cases the heart after the journey is a little more covered 

 by the lungs, most in the first case. The heart and the action of 

 the heart have likewise been affected, most in the second case, 

 where symptoms of heart insufficiency are apparent. 



I have endeavoured in the above to outline the basis from which 

 the November experiments should be estimated and may now pass 

 over to a closer account of the experiments themselves. 



This series also includes but 10 experiments; partly owing to 

 the fact, that contrary to usual it was difficult to get started, as 

 large errors occurred in the first experiments, which had therefore 

 to be omitted, partly because I undertook a double series of exper- 

 iments, in conjunction with the morning series, at intervals of 2 

 hours during the day, thus considerably lengthening the period of 

 experimentation; and other tasks also claimed my attention. 



On the first day of the experiments, 12/XI, the œdema had prac- 

 tically disappeared; the appetite was still large. On 17/XI, the first 

 day of the complete and usable experiments, the œdema had com- 

 pletely disappeared. The four introductory experiments are not 

 included in the table. 



