1030 
THE VOYAGE OF H.M.S. CHALLENGER. 
contracted: — Madeira, St. Thomas (West Indies), Bermuda, Cape Verde Islands, Bahia, 
Melbourne, Arrou Islands, Philippine Islands, Yokohama, and Tahiti. 
Erysipelas . — A single case of this affection occurred in the person of a member of 
the scientific staff, and had a rapidly fatal termination. No special cause could be 
traced connecting the disease either with the ship or the last place visited (Honolulu) ; 
and it would seem probable that, beginning as a common inflammation of the integu- 
ments, the disease afterwards assumed an erysipelatous character, the change being 
favoured by the state of the patient’s health, which had for some time previously been 
below par. 
Syphilis . — Ten cases of constitutional syphilis occurred during the Commission, the 
primary disease having been contracted in the following places : — Bahia, Cape Town, 
Hong Kong, Yokohama, Valparaiso. They did not give rise to any invaliding. 
Phthisis . — Six cases occurred during the period of the Expedition, two of which were 
invalided and two sent to hospital. In none of these cases can the disease be said to have 
been in any way specially connected with the work of the ship, as in all there was 
evidence of its existence in a latent form before leaving England — the frequent and 
rapid changes of climate experienced during the Commission bringing it into activity. 
Diseases of the Nervous System. 
In this subdivision are included one case of disease of the brain (cerebral softening), 
which had a suddenly fatal termination and was not preceded by any marked symptoms ; 
and two cases of insanity, both of which originated in the ship. They were sent to 
hospital ; one, a marine who was left at Hong Kong, subsequently dying in a state of 
acute mania. 
Diseases of the Circulatory System. 
In this subdivision are included three cases of organic disease of the heart, one of 
which was invalided, while the other two were sent to hospital. 
Diseases of the Eespiratory System. 
In this section are included five cases of bronchitis, two of pneumonia, and numerous 
cases of catarrh, complaints which were generally ascribable to a more or less sudden 
change from a warm to a cold climate. No mortality nor invaliding was due to any of 
these diseases. 
