Dear Dario, The portable spectrometer you booked until 20 November has to come back on the 13th. The department it belongs to has an inspection that week and every instrument must be on the shelf for it. You can keep it until five o'clock on the 13th and book it again from the 24th. If your readings cannot wait that long, the bench model in Room B4 measures the same range; it simply cannot leave the building. Please reply to confirm which you would prefer. If I hear nothing by Friday I will assume you are taking the bench model and will put your name down for it. Helen Awuku Instrument loans