Sir Ronald Thomson, the British representative in Persia, having at the same time induced the shah to consider the advantages to Persia of opening the Karun River and connecting it with Teheran by a carriageable road, a small river steamer for controlling the shipping on the Karun was ordered as well, and the construction of the road was decided upon.
Shortly afterwards Sir Ronald Thomson left Persia (he died on the 15th of November 1888), and Arthur (afterwards Sir Arthur) Nicolson was appointed charg daffaires.
Frequent interruptions occurred on the telegraph line between Teheran and Meshed in 1885, at the time of the Panjdeh incident, when the Russians were advancing towards Afghanistan and Sir Peter Lumsden was on the Afghan frontier; and Sir Ronald Thomson concluded an agreement with the Persian government for the line to be kept in working order by an English inspector, the Indian government paying a share not exceeding 20,000 rupees per annum of the cost of maintenance, and an English signaller being stationed at Meshed.
Before the end of the 19th century this discovery of the blood parasite of malaria was crowned by the hypothesis of Patrick Manson, proved by Ronald Ross, that malaria is propagated by a certain genus of gnat, which acts as an intermediate host of the parasite.
Besides the works mentioned above may be noticed: Some Passages of the Life and Death of John, Earl of Rochester (Lond., 1680; facsimile reprint, with introduction by Lord Ronald Gower, 18 75); The Life and Death of Sir Matthew Hale, Kt., sometime Lord ChiefJustice of his Majesties Court of Kings Bench (Lond., 1682), which is included in C. Wordsworth's Ecclesiastical Biography (vol.
Following up this line of investigation, Major Ronald Ross in 1895 found that if a mosquito sucked blood containing the parasites they soon began to throw out flagellae, which broke away and became free; and in 1897 he discovered peculiar pigmented cells, which afterwards turned out to be the parasites of aestivo-autumnal malaria in an early stage of development, within the stomachwall of mosquitoes which had been fed on malarial blood.
The burning of the Barns of Ayr, the quarters of English soldiers, in revenge for the treacherous slaughter of his uncle, Sir Ronald Crawford, and other Scottish noblemen, followed.