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Scientific Names on this Page

Indexed by Global Names
Book Title
Studien zur Descendenztheorie. I
By
Weismann, August, 1834-1914
Publication Details
Leipzig, Engelmann, 1875
DOI
https://doi.org/10.5962/bhl.title.49958
Holding Institution
Cambridge University Library
Sponsor
JISC & NEH
Copyright & Usage
Rights:
Darwin Estate and Cambridge University Library

Copyright Status:
In copyright


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Optional
Example: Charles Darwin, Carl Linnaeus
Example: Birds, Classification, Mammals
Contributed by Cambridge University Library
Annotation Not Available
Page 2
`Plate [2]'
⇑lines 10—5 score
⇑lines 20—5 annotation slight season difference ‹vy› «more» common
show subjects subjects
[continuation] figure 16 annotation Telamonides Winter form.
figure 17 annotation Marcellus summr form
Page 4
line 13 score
lines 1—15 annotation The caterpillars differ but feed on same food & are all mingled together
⇑lines 7—4 score
⇑lines 15—1 annotation Th differntly colourd caterpillars produce th same form of Butterfly
Page 5
lines 1—5 annotation 2 colours not adaptation to conditions
Page 6
⇑lines 20—12 annotation under sides of wings differ vy little—
show subjects subjects
⇑line 7 underline "direkten"
⇑lines 3—2 underline "Temperatur ... Entwicklungsdauer"
⇑line 6—bottom-margin annotation Dimorphism due to dirct effect of conditions.
Page 7
line 7 score [`bookmark']
Page 8
lines 1—5 score
top-margin—line 3 annotation Temp. durng pupation affects colour of Butterflies. by experiments
show subjects subjects
Page 9
lines 1—15 annotation Temperature did not make a complete transformation
Page 12
lines 6—9 score
lines 6—7 underline "ist ... zwingen"
Page 14
lines 1—8 annotation Summer form is a newly acquired form, & cold causes avitism & return to pristine winter forms
Page 15
⇑line 12 score [`bookmark']
Page 16
lines 10—15 score
lines 1—15 annotation Effects of climate cumulative like a poison
⇑lines 15—10 annotation Bears on climatal variations, which are slow.
Page 23
lines 1—15 score
lines 1—15 annotation Explains Marcellus & Papilio on same principles but reversion easier
⇑line 7 score [`bookmark']
Page 27
⇑lines 28—7 annotation Thinks great heat will cause atavism of the Porima-Vanessa as well as cold
bottom-margin annotation in light grey ink (over)
Page 28
lines 1—⇑1 annotation Thinks shaking causes reversion — It comes to what I said, anythng which disturbs th organisation .
Page 29
line 13 score [`bookmark']
Page 30
line 11 score [`bookmark']
⇑lines 15—5 annotation The so called alpine & arctic var. is the parent form.
Page 31
⇑lines 10—5 annotation Winter-form much less variable than summer form
Page 33
⇑lines 23—16 score in dark pencil
⇑lines 23—16 annotation in dark pencil if th same species thus split, we must expect it in distnct forms
⇑lines 6—1 score
⇑line 6—bottom-margin annotation distinguishes climate & local variations
     These cases may be compared with th Polar-Bear always white & Ermine white only in winter —
Page 34
lines 15—20 annotation Thinks this a new definition of Climatal variations . (applies to Birds in U. States.)
Page 35
line 9 underline "var. Bryoniae"
lines 8—10 score
lines 8—12 annotation a climatal var. & season dimorphic
⇑line 15 underline "Alpenklimas"
⇑lines 14—13 underline "diese ... Winterform"
show subjects subjects
Page 37
⇑lines 9—3 score cancelled
Page 38
lines 5—10 score
lines 3—15 annotation 1st question to decide whethr change of climate acts by acceleratng or delayng period of ‹variation› ‹pupation› developmt. Birds in U. States answer this.—
show subjects subjects
Page 39
lines 15—17 score
lines 15—17 annotation th result he Concludes «of» higher temp
Page 40
lines 1—4 score
top-margin—line 2 annotation The change of colour & males depends on Nature of organism & not on the warmth
Page 42
line 19 score [`bookmark']
Page 43
lines 2—15 score
line 11 underline "Entwickelungsrichtung ... andere"
lines 2—12 annotation argues that nature of organism far more important than the exciting cause
show subjects subjects
lines 17—23 score
lines 17—23 annotation quotes me to above effect
⇑line 8 underline "im ... schwarz"
⇑line 7 underline "im ... schwärzer"
⇑lines 5—1 double score
⇑lines 8—1 annotation But in Birds the nature of change seems more alike in many species—
show subjects subjects
Page 44
⇑lines 13—8 score
⇑lines 10—7 double score
⇑lines 15—3 annotation Warmth has affected one sex more than the other, so with Birds in U. States. see last Edit. of Descent.
Page 45
lines 1—4 score
line 2 annotation X
⇑lines 10—7 score
Page 46
⇑lines 6—1 double score
⇑lines 6—2 annotation Caterpillars of season-dimrphism alike
Page 47
⇑lines 4—2 score
⇑lines 4—1 annotation inheritance of corresponding sexual generation
Page 48
lines 6—11 double score
lines 5—13 annotation New law of inheritance, well-known in asexual generation
⇑line 20 underline "cyclische Vererbung"
⇑line 16 score [`bookmark']
show subjects subjects
⇑lines 12—10 score
⇑lines 12—11 underline "Generation ... der"
show subjects subjects
Page 49
⇑lines 20—14 score
⇑lines 20—14 annotation climatal vars, but no season dimorphic vars: exist
Page 56
⇑lines 6—1 score
Page 59
lines 1—3 score
top-margin annotation I think he means that sexual generation has been lost & is parthenogenetic for intermediat genertions
Page 69
lines 1—10 score
top-margin annotation A Crust. with summer & winter eggs the latter alone undergo a regular metamorphosis
⇑lines 14—10 score
⇑lines 14—9 annotation We see here a passage from metamorph to none
⇑lines 8—3 score
⇑lines 8—3 annotation think it direct result of climate???
Page 70
line 4 score [`bookmark']
⇑lines 10—3 score
⇑lines 14—6 annotation Divides cases, as I understand, into whether or not, the Embryology is different
Page 71
line 3 score [`bookmark']
Page 73
⇑lines 17—14 double score
⇑lines 6—4 score
⇑lines 6—5 annotation ⧟ as
Page 74
⇑lines 12—8 score
Page 75
lines 1—4 score
show subjects subjects
Page 77
line 12 score [`bookmark']
Page 78
lines 7—9 score in dark pencil
lines 8—9 underline "die ... Variabilität"
lines 10—11 score
lines 16—17 underline "durch ... Reiz"
lines 15—20 annotation applies to this particular case
⇑lines 12—9 score
⇑line 11 underline "durch ... grössere"
Page 79
⇑lines 13—8 score
⇑lines 13—11 annotation This is same as Jaeger
⇑lines 7—3 score
⇑lines 7—3 annotation allows douts abut Hilgendorf
Page 80
lines 3—14 score
lines 3—18 annotation His theory of isolation referred to
     ‹But it does not apply that› «Because» Variations not quite identical. in 2 stations in relative nmber.
Page 81
⇑lines 8—1 score
⇑line 8—bottom-margin annotation All variation due to changed conditions, but does not directly depend on nature of conditions
Page 82
lines 13—16 score
lines 13—26 annotation Each species has different histry & so is differntly acted on by conditions differently from other spe
⇑line 4 score [`bookmark']
Page 83
line 1 score [`bookmark']
⇑lines 10—9 underline "gerichteten ... Askenasy's"
Page 84
lines 3—14 score
lines 15—23 score
lines 26—27 underline "sie ... Reize"
End Matter 
`Plate [1]'
[continues overleaf] figure 1 annotation Winter-form Levana
figure 5 annotation Prorsa Sim
figure 10 annotation levata Summer forms
figure 12 annotation Summer forms /