

@article {11726,
	title = {{The laboratory propagation of Spirometra mansonoides as an experimental tool. IV Experimental inversion of the primary axis in the developing egg}},
	journal = {Experimental Parasitology},
	volume = {11},
	year = {1961},
	pages = {311{\textendash}318},
	abstract = {<p>When the eggs of Spirometra are incubated at 37{\{}$\backslash$textdegree{\}} C instead of the customary room temperature or lower, a heavy loss of eggs ensues, and of those that develop, as many as 20{\%} show inversion of the coracidium within the egg envelope. Eggs incubated for 3 to 4 1/2 days at {\{}37{\{}$\backslash$textdegree{\}}C{\}} and then withdrawn to room temperature develop proportionately fewer inversions. This inversion occurs naturally in about 1 egg in 300 in eggs incubated at room temperatures throughout. A similar effect is noted, but in lesser degree, in eggs where incubation in started at room temperature, and the eggs then transferred to 37{\{}$\backslash$textdegree{\}} C to complete incubation.</p>
},
	author = {Mueller, J F}
}
