Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen asking him for the starting point of Meratus Mountains and for name of guide or contact

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen concerning an account of Tichelman's journey and a description of a cave

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen concerning the Earl's trip to northern KalTim

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen informing him of his postal address

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen informing him of Paul Kimman's email address and what work he was doing

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen requesting for black and white copy of limestone map of Boeneo

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen requesting him for a black and white map of Borneo. The Earl also discussed limestone caves and outcrops

Email from the 5th Earl of Cranbrook to Dr Jaap Vermeulen seeking his advice on how to get to swiftlet caves in Meratus Mountains in KalSel

Email from the 5th Earl of Cranbrook to Dr Jan Hendrik Becking saying that he would wait until Dr David Snow had commented on Becking's manuscript before reviewing it. The Earl also requested for Snow's contact

Email from the 5th Earl of Cranbrook to Dr Jean-François Voisin agreeing to co-write a paper with Dr Voison and Dr Nguyên Quang Phach. The Earl also discussed about a student working on DNA comparisons in swiftlets