Is this sentence gramatically correct?

[sergtab]

Please tell me, is this sentence gramatically correct? Thank you!
In the experiments, we used different bioagents from the collection of the Center for Parasitology, which lists 63 items and continue to grow.

 

[Niall]

Please tell me, is this sentence gramatically correct? Thank you!

In the experiments, we used different bioagents from the Center for Parasitology's collection, which lists 63 items that continue to grow.

This sentence is not quite correct, I have corrected it to how I think it should read. I hope this is what you mean!