Newton's lantern slide catalogue (1920s)

180 NEWTON & CO., Ltd., Lantern Slide Publishers. MICROSCOPICAL POND NEWTON—PAGE 180 99 Cyclops serruiatus male. 2s. 3d. iJJ? >1 >. female. 2s. 3d. i> strenuus. 2s. 3d. !2o with parasitic verticellae. 2s. 3d 103 Lanthocamptus staphylinus. 2s. 3d. 103 Canthocamptus staphylinus. 2s 3d. »> ,) female with egg- sac. 2s. 3d. ” )’ ,, side view. oj 2s. 3d. »» »> „ limbs extend ^ ed. 2s. 3d. ^ general. 104 Group of Protozoa and Infusoria. 3s 6d 1, Q -D1 ^ r PHANEROGAMIA. JJ,T -^mpderwort with captured water-flea. 2s. 9d. 184 v\ ater-weed with oxygen bubles. 2s 3d T. CRYPTOGAMIA, 105 Draparnaldia glomerata. 2s. 9d 106 Zygnema. 2s. 9d. 107 Spirogyra. 2s. 9d. 124 „ Photo. 2s 3d. 108 Batrachosperuni. 2s. 9d. DESMIDIACEAE. 109 Group of Desmids. 3s. 157 Desmids, various. 2s. 3d. 110 Micrasterias rotata. 3s DIATOMACEAE. 111 Pleurosigma attenautum. 2s. 9d. *> angulatum (high magnification). , t. 2s. 3d. 154 ,, 2s 156 Pleurosigma angulatum, x 900. 2s! 3d. ‘ * 1*16 „ formosum, x 1000. 2s. 3d. 112 147 148 150 155 158 153 113 114 115 116 117 192 193 194 195 196 197 198 199 200 201 Li F E— (Continued). Surirella biseriata. 2s. 9d. Surirella gamma, high magnification. 2s. 3cl. Navicula rhomboides, high magnification. 2s. 3d " u „ 2s. 3d. ” ” , ’> 2s. 3d. A ’V., ” (dots), X 500. 2si3d. pellucida, high magnification. Epithemia turgida. 2s. 9d. Pinnularia viridis. 2s. 9d. Pinnularia nobilis. 2s. 3d. BaciUaria paradoxa. 2s. 9d. Diatoma vulgare. 2s. 9d. KNOWLEDGE SERIES. ^2s 3d^ Zeophytees (BourgainvilJia) x 10. Single Individual of the Club Zoophyte (Clava) much enlarged. 2s. 3d. y \ va;. ^“n£ged?"2s?3d (Mphasia), much Portion of Zoophyte (setularella) much en- Jarged, showmg embryo capsules. 2s. 3d. Polypite (Coryne), much enlarged to show thread cells. 2s. 3d. Polypites (Syncoryne)-, much enlarged to show attached embryos. 2s. 3d. A SmaU Colony of Zoophytes (Hydractinia), much enlarged. 2s. 3d. ' Part of Zoophyte (Aglaophenia), much enlarged showing corbula. 2s. 3d. Small Colony of Zoophytes (Clytia), much en- larged, showing the Calycles. 2s. 3d. Portion of Zoophyte (Gonothyraea), much en- larged, showing embryos attached to too of capsules. 2s. 3d. ^ VP THE EVOLUTION OF A FROG. A Series of X-Eay Lantern Slides on the Evolution from the Spawn through the Tadpole Stage to Idie Mature Frog, showing Absorption of the Tail and Develop- ment of Internal Organs and Skeleton. Eieveiop Photographed from life by Mr. W, M. Martin, of Eedruth. Plain Slides^ 2s. 3d. each. The Herbivorous Period. 1 Spawn of Frog taken from a pool in Februar showing eggs embedded in a jelly-like striii of mucilage 2 Showing young Tadpoles after they have jerke themselves out of the gelatinous moss, as ve mouthless and living on their still uuexhausto capital of yolk 3 Showing development of a flsh-like tail, and firs appearance of portions of a short alimentar canal, also slight internal indications of thi coming posterior legs. 4 Showing the development of a more globula shape of body, with an elongation of alimen tary canal and further internal developmen of posterior legs ^ 6 First appearance of bone as two centres o; ossification in head, also showing appearanot of a rounded mouth and alimentary cana forming itself into a coil ^ 6 Showmg further development of bones of head and the alimentary canal coiled up like g to extending almost from sidt 7 Same period as No. 6, but radiographed througl the sides and showing first appearance o] centres of ossification of vertebral column o Saum period as No. 6, with exposure governed tc show the portions most transparent to X Ravs, seen as white dots and possibly caused bv lels of tissue to allow of exit f posterioi 9 Showmg first appearance externally of the posterior legs, both appearing simultaneously, body of Tadpole larger and more elongated, with development of a bigger tail for use as a powerful swimming organ 10 Same period as No. 9, with exposure to the X Rays so governed as to show the varying degrees of transparency of the skin 11 Showing appearance of two additional bone *^®^tres in head, Mouth more triangular in shape, Alimentary canal extending from side to side with an enlargement of its end on left 12 Alimentary canal becoming smaller, and in the two central Tadpoles, which have been kept without food, the bones of the head may now be seen articulated to the partially ossified vertebral column 13 Showing further development of the bones of head, Alimentary canal still diminishing in size and more confined to right side 14 Showing first indications of the coming fore" limbs, and also that the right side of vertebra^ column ossifies sooner than the left 15 About a week later than No. 14, radiographed though the ^ sides, showing small tongue amxed to the inner side of front of lower jaw, Also as an outgrowth from the hindermost yeriebrse the long spine of the backbone (see full grown stage) may be seen partially - developed