Saturday, July 03, 2010

sawtooth oak tree

The sap had come out from the sawtooth oak tree. Insects come to drink the sap. I want to measure the salinity of the sap.

クヌギの木から樹液が出ていました。昆虫達が樹液を呑みに来ます。樹液の塩分測定をしたいと思っています。

# posted by 塩分測定 : 2:21 AM
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