MALARIA, MOSQUITOES AND THE ESSEX MARSHES 43 Tilbury: Faught reported: "Tilbury Fort has long been regarded as un- healthy and troops have, of late years been relieved every six months. In 1873, there were 12 admissions for ague among 102 quartered there during the first six months, and in the same period in 1872 there were 34 ad- missions for ague among 103 men stationed there". Romford: Deck Davey (surgeon) said that the neighbourhood was particu- larly exempt from ague about 1864, but one or two cases occur- red in the town itself in 1859. Rainham: From the same source we learn that there were several cases in 1859. Glenny, in his article, 'The Thames Dykes', in The Essex Review (1942), recorded that in about 1850, "Ague was rather prevalent in poor residences near the Marshes, and Mrs. Pollett, senior, always carefully preserved the consumed wick or snuff from her candles, which she considered as a specific for this malady. Other benevolent neighbours gave away quinine which was probably a more useful remedy". 1858 and 1859 were remarkably dry years and there was an epidemic of malaria; in fact, the last extensive one. In the Army Medical Department Report for 1874, under the heading, 'Paroxsymal Fevers', there is an entry to the effect that the rate of admission (for Home Forces) was 9.4 per 1,000 men, showing a reduction of nearly one half on the rate of the preced- ing year. The greatest rate of prevalence of fevers of this nature (ague in all except 35 cases) was that of Woolwich (22.6 per 1,000). The Woolwich District combined in itself the two conditions of residence in it of a large number of men recently arrived from abroad and that of containing stations—Purfleet and Tilbury Fort—where malaria fever was endemic. Surgeon-Major Faught, to whom reference has earlier been made, reported in 1875 on the prevalence of ague and malaria at Tilbury Fort and connected this prevalence with the water supply. The supply to the Fort was rainwater, collected from the roofs and stored in underground concrete tanks (after passing through a rough filter of charcoal and gravel) which had been built in 1873. Prior to that, there were no means of purifying the water. He recorded that, as the tanks required emptying and cleansing, a temporary alternative supply was obtained from a spring at Tilbury Railway Station. Before the storage tanks were again used, the water was sampled and found to be very impure,