Milchamah LaHashem ba-Amalek [Polemic against the use of ethrogim from the Greek Isles, particularly Corfu]

The author inveighs against the purchase of citrons from Corfu for ritual use during the Sukkoth festival, for two reasons: The Corfiote citrons have been found to be hybridized with lemons, rendering them ritually unfit; coupled with the fact that the Corfiotes of late have subjected the local Jewish population to pogroms on the trumped up charge of ritual murder. Instead, Jews should purchase pure citrons from the Land of Israel. Contains letters from the great rabbis of the time, including R. Leibele Eiger of Lublin (p. 3)