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Laws of Variation

American Nat. September 1874 p 534; excellent summary with remarks on J. A. Allens paper on effects of conditions on Birds.

Allen, Joel Asaph. 1874. Geographical variation in North American birds. American Naturalist 8: 534-541. PDF

Trans, N. Zealand Inst V 1872 p 242 Hutton urges great variability is compatible with longevity of a species (Bears on Jaeger) (Brachiopods in the same case) But I doubt Huttons argument. F. W. Fish must be somehow easily transported.

Hutton, Frederick Wollaston. 1872. On the geographical relations of the New Zealand fauna. Transactions and Proceedings of the New Zealand Institute 5: 227-256. [CUL-DAR240] PDF

Bastian Beginning of Life Vol. 2 p LXXXII. Cohn on variability of Phytozoa under different conditions vary much; & then render it probable that such occur in higher organisms

Bastian, Henry Charlton. 1872. The beginnings of life. 2 vols. London: Macmillan. [signed] CUL-DAR.LIB.27 vol. 1 PDF vol. 2 PDF

Vol. 2 p. 594 to 599 — argues well that I do not attribute weight enough to extreme conditions.

p. 608 opposes all I say about changes slower at earliest period of world in lowest forms.

Oscar Schmidt. Doctrine of Descent p 214 [A Law] ([3 words illeg] of greater whorls of ammonites first vary & then transmitted to an earlier age.

Schmidt, Oscar. 1875. The doctrine of descent and Darwinism. London: Henry S. King & Co. CUL-DAR.LIB.573 PDF

Leith Adams, Fields & Forest Rambles p 167 Curlew with long bill, hardly any individuals with bills of same length; but do not trust this, as he gives many other cases of very variable beaks.

Adams, Andrew Leith. 1873. Field and forest rambles, with notes and observations on the natural history of eastern Canada. London: H. S. King & Co. [inscribed by author] CUL-DAR.LIB.3 PDF

Hackel Kalkschwämme. Vol. 1 p. 381. Causes of variability

Haeckel, Ernst. 1872. Die Kalkschwämme: Eine Monographie in 2 Bänden Text and einem Atlas. 2 vols. and atlas. Berlin: Georg Reimer. [inscribed in vol. 1] CUL-DAR.LIB.248 vol. 1 PDF

Weismann on Saison-Dimorphismus — very important evidence that climate can produce changes equal to distinct species. How odd does not changes do so. Like Birds in U. States. Effects of climate cumulation

Weismann, August. 1875. Studien zur Descendenz-theorie. I. Über den Saison-Dimorphismus der Schmetterlinge. Leipzig: Wilhelm Engelmann. CUL-DAR.LIB.673.1 PDF

p. 31. The winter or aboriginal form less variable than summer forms.

p. 33 distinguishable (new to 34) climate & cold vars

p. 38 How climate acts.

p 73 conclusions

p 79 Like Jaeger any species has period of variability & consistency.

p 80 abstract of his theory of isolation.

Hildebrand. Verbeitungen Mittel p 161. remarks on wonderful diversity & structure modified for dispersion & for same kind of Defensive; theory how endless have been the variability — good

Hildebrand, Friedrich Hermann Gustav. 1861. Die Verbreitung der Coniferen in der Jetztzeit und in den früheren geologischen Perioden. Bonn: Carl Georgi. (from: Verhandlungen des naturhistorischen Vereines der preussischen Rheinlande und Westphalens (1861) 18: 199–384, pls. I-IV.) [Darwin Library-Down] PDF

Jaeger in Sachen Darwin p. 5 to 16 maintains all sp. bot variable — different sp. of genus vary differently in degrees

Jäger, Gustav. 1874. In Sachen Darwin's insbesondere contra Wigand. Stuttgart: E. Schweizerbart'sche Verlagshandlung (E. Koch). CUL-DAR.LIB.320 PDF

p. 11 period of plasticity & unchangeableness & then seized for ever. — like Weismann —

p. 49 explain how all incurring a part.

Zoolog Record 1872 p. 199 very important paper on direct effect of rearing generations of Branchiopods in less & less salt-water, causing structural modifications — direct action.

Martens, Eduard von. 1872. Crustacea [review of literature. Paper by Schmankiewitsch on Brachipus.] Zoological Record 9: 185-204. PDF