Volume 42, 1909
![Thumbnail: [Volume 42, 1909 page 49]](/journals/rsnz/images/rsnz_42/thumbnails/rsnz_42_02_0768_0000_ac_02.gif)
1909.
11th May, 1909.
Dr. Leahy, President, in the chair.
The President delivered an address on “Radio-activity.”
Transactions and Proceedings of the Royal Society of New Zealand 1868-1961
11th May, 1909.
Dr. Leahy, President, in the chair.
The President delivered an address on “Radio-activity.”