ade the follow- water; but some of them have large pectoral fins which erted a pressure of 30 lbs. per square foot, or t Ib. per ing interesting communication: ‘‘ The product of manufac- enable them to leap from the water, and endure the air fora square inch, and traveled at the rate of sixty six… … the Chinese glassblowers, whose labor voracious appetite and defiant digestion is ill paid, and who, notwithstanding may make him terrible in attack. this, show very remarkable results in their exercise of this hour. It is interesting to estimate the force of such a re curious industry, and who…
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