[1] Ross invented several surgical instruments and apparatus such as a pilot catheter for removing blood-clot from the bladder and an inhaler for the continuous administration of oxygen.

[3][4] Ross advocated a new local anaesthetic made from a sterilized solution of quinine and urea hydrochloride which prevented pain after an operation.

[13][14] Ross stated that by utilizing large quantities of potassium in his own practice for many years, not one case of cancer had developed among his patients.

[9][13][17][18][19][20] A review in The Lancet concluded that "the cases are too recent and too few in number to enable any definite opinion to be formed as to the value of the treatment, but we believe the author to be thoroughly convinced of the truth of his theory.

"[9] A negative review in the American Journal of the Medical Sciences commented that "his few experiments are insufficient and his deductions are poorly founded.

Lazarus-Barlow commented that "experiments were conducted here with a view to determining the amount of potassium in the blood and tissue of normal persons and cancer patients and we found that there was more in the latter.

Ross held unorthodox opinions about raw meat which were widely reported in newspapers but criticized by the medical community.

[24] Ross stated that he was a "habitual eater of quantities of very underdone sirloin of beef steak, and I do so because I believe as a result of investigations it protects me against all forms of tuberculous infection.