...The testes increase in size gradually rather than rapidly at maturity or in each breeding season, but seasonal cycles in sperm production occur... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The primary notes have 187 to 240 pulses per second andmajor frequencies of about 740 to 1870 cycles per second (Pl...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Smilisca phaeota has the lowest upper frequencies;no calls ranged above 4400 cycles per second (cps...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...—One long note is repeated once after 10to 13 seconds and has an average dominant frequency of 2750 cycles persecond...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
...65second, and a rate of 92 to 100 pulses per second; the dominantfrequency falls between 3000 and 3200 cycles per second ()...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
...The notes have 80 to 120 pulses per second, a fundamental frequency of about 70 cycles per second, and a dominant frequency of 2,840 cycles per second (Table 2, Pl...
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...The mating call of this species is a series of closely spaced notes having a fundamental frequency of about 100 cycles per second...
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...The notes are moderately low-pitched and have a dominant frequency of more than 3,000 cycles per second and about 120 pulses per second (Table 2)...
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...A zone of mechanical vibrations,of a frequency of 500,000 cycles per second, was created by a largequartz crystal in the water, which was electrically operated...
Various 「Astounding Stories of Super-Science, August 1930」
...This wasnot so good as the cycle of 11 years would have been, and not to becompared with the combination of the two cycles in that of 19 yearsascribed to Meton...
E. Walter Maunder 「The Astronomy of the Bible」
...He was therefore compelled to retain the useof cycles and epicycles, in order to account for irregularities in theuniformly circular motions of those bodies...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...Butthese cycles are themselves subject to cycles, sothat the Saros itself passes through a cycle ofabout 64 Saroses before the conditions under whichany given start was made, come quite round again...
George Chambers 「The Story of Eclipses」
...By combining these two numbers of Daniel some cycles of extremeastronomical interest have been derived by De Cheseaux, a Swissastronomer of the eighteenth century, and by Dr...
E. Walter Maunder 「The Astronomy of the Bible」
...Ingenious men have suggested many suchkinds of influence, which, according to their investigations,appear to run in cycles of eleven years...
George C. Comstock 「A Text-Book of Astronomy」
...This indicatesno change in the position of the domeof stars, but a change in the direction of the axis of the earthpointing to these various places as the cycles pass...
Henry Warren 「Recreations in Astronomy」
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