...Underthe arms the heart will be seen; it will be studied as a partof the circulatory system... 
Worrallo Whitney 「A Guide for the Study of Animals」
...In cattle, as in human beings, the heart, blood vessels, and lymphatics maybe described as the circulatory apparatus...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Larvule: applied to early stages of Ephemerid larvaewhen they appear to have no developed respiratory, circulatory ornervous systems...
John. B. Smith 「Explanation of Terms Used in Entomology」
...At these points the circulatory reserves of the insect are pulsing intidal onsets...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...The circulatory system consistssimply of a long tube heart, the bloodvessels being absent...
Leonard Haseman 「An Elementary Study of Insects」
..., the nervous, digestive, circulatory,and respiratory systems, differ in their position in relation to thewalls of the body...
Alpheus Spring Packard 「Our Common Insects」
...The formation of the circulatory system in this animal is not less interesting...
Ernst Haeckel 「The Evolution of Man」
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