...Arachnida are the older class ? " If," as Fritz Miiller well observes, " all the classes of the Artb.ropoda (Crustacea, Insecta, Myriopoda, and Arachnida) are...with their tracheal respiration, have branched off" * (p. 120). The accompanying Table will probably express, more strongly than words, my grounds for...

...Muller) ' the Crustacea, insecta, myriapoda, and arachnida are indeed all branches of a common stock, it is evident that the water-inhabiting and water-breathing...with their tracheal respiration, have branched off.' In the above-quoted paper (pp. cit. p. 53) I pointed out that the young Limuhts, when it quits the...

...Fritz Miiller well observes, " If all the classes of the Arthropoda (Crustacea, Insecta, Myrapoda, and Arachnida) are indeed all branches of a common...with their tracheal respiration, have branched off."* Viewed as a whole, the Crustacea probably present to us the best zoological illustration of a class...

...the Arachnida are the older class ? " If," as Fritz Miiller well observes, " all the classes of the Arthropoda (Crustacea, Insecta, Myriopoda, and Arachnida)...with their tracheal respiration, have branched off." (" Facts and Arguments for Darwin," p. 120). The accompanying Table is merely intended as an attempt...

...serious difficulties. If all the classes of Arthropoda (Crustacea, Inseuta, Myriopoda and Araclraida) are indeed all branches of a common stem (and of this...metamorphosis" of the Insecta, nowhere among the young or adult that approaching most nearly to the original one, is easy to judge from the above statements. TJie...

...later origin, is met by serious difficulties. If all the classes of Arthropoda (Crustacea, Inseeta, Myriopoda and Arachnida) are indeed all branches of...comparable to the "complete metamorphosis" of the Inseeta, nowhere among the young or adult that approaching most nearly to the original one, is easy...

...Müller, ' the crustácea, insecta, myriapoda, and arachnida are indeed all branches of a common stock, it is evident that the water-inhabiting and water-breathing...from which the other terrestrial classes, with their trachéal respiration, have branched off.' "In the above-quoted paper I pointed out that the young...

...Arachnida are the older class ? " If," as Fritz Miiller well observes, " all the classes of the Arthropods (Crustacea, Insecta, Myriopoda, and Arachnida) are...(terrestrial) classes, with their tracheal respiration, havo branched off." (" Facts and Arguments for Darwin," p. 120). The accompanying Table is merely intended...

...of this there can scarcely be a doubt), it is evident that the water-inhabiting and waterToreathing Crustacea must be regarded as the original stem from...with their tracheal respiration, have branched off."* Viewed as a whole, the Crustacea probably present to us the best zoological illustration of a class...

...are indeed all branches of a common stem (and of this there can scarcely be a doubt), it is eviden^ that the water-inhabiting and waterbreathing Crustacea must be regarded as the original stem * The larval and adult Libellula, Ephemera, &c. f Gecarcinus ruricola, and other land-crabs. j The...