I'm fairly new to Garden Web, and don't often get the chance to browse the forum, just noticed your posting, Glassii is a sweet little plant, and that is a lovely form. Mamms are long time favourites of mine, you've got some really nice ones there.
You've inspired me to post a few of my own pics. I have recently scanned a few of my slides, so I will post some a pic from time to time.

Cheers CP

Hi CP

Thank you for your kind words. Mammillaria are one of my favourite cacti too, I have only been collecting for 3 years and have about 50 different types.

I would love to see some of your plants, I visit gardenweb regularly so I will keep a lookout for your posts.

Michelle
Nth Qld Aust