I found this thread because I was trying to figure ou why. I click on "Thread Tools" get the drop down menu, select "Advanced Search" and it just brings up a page with a simple search slip - no options.
I'm running Firefox 25.0 on OSX 10.6. I seem to recall that it's worked for me in the...
I believe what your pictures show is the waxy pellicle (aka skin) associated with certain yeasts commonly found on fruit. For instance, it's common to see something just like this with yeasts like Brettanomyces (aka "brett") which are used in making Lambics (they're acidogenic - ie acetic acid...