The list is titled 'Lindberg Itinerary' and is essentially a list of field numbers alongside a location and date.
The locations all appear to be in and around Afghanistan.
There is a note attached to the list in Ian Hedge's handwriting that states: 'These lists of Lindberg collections refer to his zoological and not botanical gatherings. They are therefore only useful in knowing where he collected on particular days. No comprehensive lists of his botanical collections exist, but a paper by Rechinger and Riedl (Ann. Nat. Mus. Wien 65:29-37 (1962) deals with the plants he collected in the Wakhan area.'
Library acc no. ECEU1: (right click, open link in new tab) https://rbge.koha-ptfs.co.uk/cgi-bin/koha/opac-detail.pl?biblionumber=78813&query_desc=kw%2Cwrdl%3A%20lindberg