I am probably not alone when I am left wondering if I should wait until the full article has been published before starting a project. It would be very helpful if the first part of a serialised article included a general outline of the content of the rest of the series.
The case in point is the Steam Calliopes, Whistles and Wind Chimes article in Vol. 203 No. 4361. The three items are covered in the first section but there is no indication of what may be to come.