Free exchange of information and resources between the TWU Herbarium and other herbaria and institutions is encouraged. Sending specimens by mail greatly facilitate this exchange of information.

A loan of specimens is made in response to a written request by established botanical institutions for use in valid scientific projects. Loans are made to institutions and not to individuals for a period of time of up to one year and they can be extended. All pertinent loan data are maintained in the 'Loan Record' book by the Curator. Specimens will be prepared and packed by the Herbarium staff according to accepted practices for botanical specimens. Loans will be accompanied by a loan agreement that outlines the terms of the loan and a list of the specimens being sent. By signing the loan agreement, the borrower promises to treat the borrowed specimens with care and respect. Failure to do so will result in a loss of borrowing privileges to the investigator and possibly to his/her institution.