High Quality Content by WIKIPEDIA articles! The Wardian case, the direct forerunner of the modern terrarium (and the inspiration for the glass aquarium) was invented by Dr Nathaniel Bagshaw Ward (1791–1868), of London, in about 1829 after an accidental discovery inspired him.Dr Ward was a physician with a passion for botany. His personally collected herbarium amounted to 25,000 specimens. The ferns in his London garden in Wellclose Square, however, were being poisoned by London's air pollution, which consisted heavily of coal smoke and sulphuric acid. In contrast to his flagging ferns, in the bottles where Dr. Ward kept cocoons of moths and the like, he found that fern spores were germinating and growing in a bit of soil. He had a carpenter build him a closely-fitted glazed wooden case and found that ferns grown in it thrived.

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