Page:The Garden Mushroom.pdf/19

 Be careful too in searching adjacent old dung-hills and dungy compost heaps in any out-grounds, and in stable yards, where horse dung-heaps have been for some continuance in a state of decay, especially in obscure dry corners long undisturbed.

In the horse rides and livery stable yards in and about London, where the long covered rides are littered thickly from the stable, with occasional dunging and staling, search towards the sides where you will often find great abundance of fine large cakes of most excellent strong spawn.

Horse-mill tracks also, where horses are constantly employed under cover in turning mills; and many of the great London breweries, tan-yards, and large manufactories,