1871. 1872. Memel 5·5 37·0 Gerdauen 18·9 53·1 Rastenburg 65·9 26·8 Friedland 13·7 35·5 Eylau 15·2 29·7 Heiligenbeil 19·7 8·1 Braunsberg 2·9 10·1 Heilsberg 6·3 27·2 Rössel 25·7 52·2 Allenstein 7·4 108·5 Ortelsburg 20·6 124·4 Neidenburg 1·7 45·6 Osterode 4·7 76·5 Mohrungen 2·1 36·2 Prus. Holland 1·1 8·3 Heydekrug 43·3 Niederung 23·7 84·6 Tilsit 5·4 46·3 Ragnit 4·6 51·7 Pillkallen 0·7 17·4 Stallupönen 0·7 14·0 Gumbinnen 17·1 35·8 Darkehmen 3·8 25·3 Angerburg 10·9 81·0 Goldap 2·3 41·2 Oletzko 1·0 24·7 Lyk 2·4 17·8 Lötzen 5·1 28·3 Sensburg 13·3 52·1 Johannisburg 15·8 12·4 Several of the last fifteen districts (Heydekrug to Johannisburg in the above table) had relatively few cases of small-pox; the reason for this was that the governmental district of Gumbinnen had but little intercourse, that few prisoners were taken there at all, and that there were no cases of small-pox among the few that were taken there.