Harvester heads are the order of the day in Logging-on’s second edition of June. Firstly, Waratah has announced their new H425, H425HD and H425X harvester heads for tough jobs. Secondly, Logset has reengineered their harvester head production workspace to increase output by 50% and simultaneously improve safety in the factory. Thirdly, Eco Log is now producing their own series of harvester heads. The 461 LF, 561 LF, 661 LF and 761 LF heads have been added to the Eco Log product line-up. Still on attachments, Cat has released two new mulcher attachments for excavators and other forestry machines - the Cat HM3013 and HM5515 models. Finally, we bring a most interesting comprehensive new book on using biomass as a fuel.