SIR - With reference to the letter from Mr J Armitage (T&A July 12).

The Overground network to be introduced in Bradford tomorrow will be part of a number of service changes on the whole network. The "Overground" concept provides frequent, high-quality services which can be identified by six distinct colours.

These changes are part of a number of changes which will see 88 new vehicles introduced in Bradford this summer representing an investment of over £10m. As well as the Overground, a number of new routes will operate these new vehicles as the Sovereign standard is extended to more and more of the network.

These changes follow the introduction of FirstCard in April making bus services in Bradford one of the most advanced in Europe.

In respect of Mr Armitage's specific comments, a number of changes have been made in the Swain House area. From July 23 those living on King's Road will be able to use the 610 or 624 service (both Sovereign standard) to travel into Bradford and link with the 670 to Leeds.

The service changes we have introduced in the area will in fact mean an increased frequency on the present level of service on King's Road.

Khadim Hussain, Operations Director, First Bradford, Bowling Back Lane, Bradford 4.

SIR - I purchased a Jowett Javelin from Woolworths in 1947 in Skegness! Admittedly it was a Dinky car (I think) but it was breathtaking in its shape and design in the post-war era.

I refer, of course, to Mr Tolson's lament in the T&A of July 15 on the demise of a once-proud Bradford and his noble stance in promoting a product among the many around at that time which have sadly dwindled away.

The backbone of our economy was the number of mill chimneys protruding (smoke permitting) from the natural basin of a township which heaved with textile workers who, along with engineering and foundry workers, made up the majority of the labour force.

Now Morrisons and the successes of Saltaire, Bradford City and the Bulls just about encapsulate the sorry state of a once-thriving city.

What do the new developers of Bradford want to get them to invest here? We have a young, nimble-fingered work-force to fill all eventualities, so what's the problem? I reckon the modern buildings in neighbouring Leeds make developers think twice when they see our humble offerings.

Kenneth E Higgins, Carr Bottom Grove, Little Horton.

SIR - Re "Green mystery still baffles" (T&A, July 17). The head teacher of Lidget Green Middle School, Mr John Edward, said they have tried to get to the bottom of where the Green was in Lidget Green - whether it was Lidget or Lidgate from the Saxon 'Leadgate' signifying a gate, leading to a field.

I may have the answer: Up to the early 1850s part of Lidget Green was owned by the Scholemoor estate, and when this estate was put up for sale, a plan was made for the auction of eight lots of land.

This plan can be seen at Bradford Central Library (fifth floor).

Lot Eight was sold for £450,000 at the Talbot Inn, Bradford on September 6, 1852. This plot was shown on the auction plan at what today forms the square from Turner Avenue along Necropolis Road up Cemetery Road then up Scholemoor Road, and was named on the plan as Lidget Green field.

Alfred Heppleston, Benn Cresent, Lidget Green, Bradford.

SIR - Having read the letter from Mr Wilson (July 13) I feel I have to reiterate his gratitude. Listening to people complaining about the NHS really makes me angry.

Last October my son was involved in a road-traffic accident and from start to finish he received first-class treatment. Nothing was too much trouble. Also we as a family were well supported.

So a big thanks to BRI A&E department (especially Adam), Ward 2 and all the doctors and nurses involved.

I am pleased to say because of this excellent service my son is now able to work again.

Elizabeth Bennett, Overdale Drive, Thackley, Bradford.

SIR - Re "Trolley difficulties" (letters, July 15). There is a better system than the £1 deposit on trolleys available to supermarkets. Developed in recent years is the "Grid Retention" system. Special wheels fitted to the trolley lock into grids fitted around supermarket car-park exits, to prevent theft.

However, although made available by at least one trolley manufacturer, it is not yet in wide-spread use, probably due to high installation costs.

D B Sutcliffe, Brighouse Road, Queensbury.